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Finding the Fourth Proportional to 508,007.73, 761,478.14 and 170,931.36

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Solution

The fourth proportional to 508,007.73, 761,478.14 and 170,931.36 is: 256,217.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,007.73 : 761,478.14 = 170,931.36 : x
  2. Step 2: Convert to fraction form
    508,007.73/761,478.14 = 170,931.36/x
  3. Step 3: Cross multiply
    508,007.73x = 761,478.14 × 170,931.36
  4. Step 4: Simplify right side
    508,007.73x = 130,160,494,507.80
  5. Step 5: Solve for x
    x = 130,160,494,507.80/508,007.73
  6. Step 6: Final answer
    x = 256,217.55

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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.