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Finding the Fourth Proportional to 555,148.92, 832,802.81 and 170,930.28

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Solution

The fourth proportional to 555,148.92, 832,802.81 and 170,930.28 is: 256,419.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,148.92 : 832,802.81 = 170,930.28 : x
  2. Step 2: Convert to fraction form
    555,148.92/832,802.81 = 170,930.28/x
  3. Step 3: Cross multiply
    555,148.92x = 832,802.81 × 170,930.28
  4. Step 4: Simplify right side
    555,148.92x = 142,351,217,498.09
  5. Step 5: Solve for x
    x = 142,351,217,498.09/555,148.92
  6. Step 6: Final answer
    x = 256,419.88

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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.