Home / 316,092.40-472,972.20-288,098.80

Finding the Fourth Proportional to 316,092.40, 472,972.20 and 288,098.80

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Solution

The fourth proportional to 316,092.40, 472,972.20 and 288,098.80 is: 431,085.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,092.40 : 472,972.20 = 288,098.80 : x
  2. Step 2: Convert to fraction form
    316,092.40/472,972.20 = 288,098.80/x
  3. Step 3: Cross multiply
    316,092.40x = 472,972.20 × 288,098.80
  4. Step 4: Simplify right side
    316,092.40x = 136,262,723,253.36
  5. Step 5: Solve for x
    x = 136,262,723,253.36/316,092.40
  6. Step 6: Final answer
    x = 431,085.10

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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.