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Finding the Fourth Proportional to 261,349.40, 392,024.10 and 243,634.70

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Solution

The fourth proportional to 261,349.40, 392,024.10 and 243,634.70 is: 365,452.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,349.40 : 392,024.10 = 243,634.70 : x
  2. Step 2: Convert to fraction form
    261,349.40/392,024.10 = 243,634.70/x
  3. Step 3: Cross multiply
    261,349.40x = 392,024.10 × 243,634.70
  4. Step 4: Simplify right side
    261,349.40x = 95,510,673,996.27
  5. Step 5: Solve for x
    x = 95,510,673,996.27/261,349.40
  6. Step 6: Final answer
    x = 365,452.05

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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.