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Finding the Fourth Proportional to 409,062.69, 613,635.93 and 156,555.54

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Solution

The fourth proportional to 409,062.69, 613,635.93 and 156,555.54 is: 234,849.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,062.69 : 613,635.93 = 156,555.54 : x
  2. Step 2: Convert to fraction form
    409,062.69/613,635.93 = 156,555.54/x
  3. Step 3: Cross multiply
    409,062.69x = 613,635.93 × 156,555.54
  4. Step 4: Simplify right side
    409,062.69x = 96,068,104,384.55
  5. Step 5: Solve for x
    x = 96,068,104,384.55/409,062.69
  6. Step 6: Final answer
    x = 234,849.34

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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.