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Finding the Fourth Proportional to 369,572.47, 510,007.53 and 208,428.91

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Solution

The fourth proportional to 369,572.47, 510,007.53 and 208,428.91 is: 287,630.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,572.47 : 510,007.53 = 208,428.91 : x
  2. Step 2: Convert to fraction form
    369,572.47/510,007.53 = 208,428.91/x
  3. Step 3: Cross multiply
    369,572.47x = 510,007.53 × 208,428.91
  4. Step 4: Simplify right side
    369,572.47x = 106,300,313,569.69
  5. Step 5: Solve for x
    x = 106,300,313,569.69/369,572.47
  6. Step 6: Final answer
    x = 287,630.50

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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.