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Finding the Fourth Proportional to 531.12, 733.04 and 345.16

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Solution

The fourth proportional to 531.12, 733.04 and 345.16 is: 476.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.12 : 733.04 = 345.16 : x
  2. Step 2: Convert to fraction form
    531.12/733.04 = 345.16/x
  3. Step 3: Cross multiply
    531.12x = 733.04 × 345.16
  4. Step 4: Simplify right side
    531.12x = 253,016.09
  5. Step 5: Solve for x
    x = 253,016.09/531.12
  6. Step 6: Final answer
    x = 476.38

Related Problems

Find fourth proportional to 265.56, 366.52 and 172.58
Half scale
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Double scale
Find fourth proportional to 532.12, 734.42 and 346.16
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.