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Finding the Fourth Proportional to 454,178.43, 626,736.15 and 272,898

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Solution

The fourth proportional to 454,178.43, 626,736.15 and 272,898 is: 376,581.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,178.43 : 626,736.15 = 272,898 : x
  2. Step 2: Convert to fraction form
    454,178.43/626,736.15 = 272,898/x
  3. Step 3: Cross multiply
    454,178.43x = 626,736.15 × 272,898
  4. Step 4: Simplify right side
    454,178.43x = 171,035,041,862.70
  5. Step 5: Solve for x
    x = 171,035,041,862.70/454,178.43
  6. Step 6: Final answer
    x = 376,581.16

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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.