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Finding the Fourth Proportional to 514.51, 771.26 and 341.23

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Solution

The fourth proportional to 514.51, 771.26 and 341.23 is: 511.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    514.51 : 771.26 = 341.23 : x
  2. Step 2: Convert to fraction form
    514.51/771.26 = 341.23/x
  3. Step 3: Cross multiply
    514.51x = 771.26 × 341.23
  4. Step 4: Simplify right side
    514.51x = 263,174.27
  5. Step 5: Solve for x
    x = 263,174.27/514.51
  6. Step 6: Final answer
    x = 511.50

Related Problems

Find fourth proportional to 257.26, 385.63 and 170.61
Half scale
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Double scale
Find fourth proportional to 515.51, 772.76 and 342.23
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.