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Finding the Fourth Proportional to 541.58, 747.47 and 345.16

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Solution

The fourth proportional to 541.58, 747.47 and 345.16 is: 476.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.58 : 747.47 = 345.16 : x
  2. Step 2: Convert to fraction form
    541.58/747.47 = 345.16/x
  3. Step 3: Cross multiply
    541.58x = 747.47 × 345.16
  4. Step 4: Simplify right side
    541.58x = 257,996.75
  5. Step 5: Solve for x
    x = 257,996.75/541.58
  6. Step 6: Final answer
    x = 476.38

Related Problems

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Half scale
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Double scale
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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.