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Finding the Fourth Proportional to 308,001.53, 425,037.59 and 172,037.39

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Solution

The fourth proportional to 308,001.53, 425,037.59 and 172,037.39 is: 237,409.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,001.53 : 425,037.59 = 172,037.39 : x
  2. Step 2: Convert to fraction form
    308,001.53/425,037.59 = 172,037.39/x
  3. Step 3: Cross multiply
    308,001.53x = 425,037.59 × 172,037.39
  4. Step 4: Simplify right side
    308,001.53x = 73,122,357,635.49
  5. Step 5: Solve for x
    x = 73,122,357,635.49/308,001.53
  6. Step 6: Final answer
    x = 237,409.07

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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.