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Finding the Fourth Proportional to 345,004.36, 517,472.52 and 108,340.72

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Solution

The fourth proportional to 345,004.36, 517,472.52 and 108,340.72 is: 162,500.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,004.36 : 517,472.52 = 108,340.72 : x
  2. Step 2: Convert to fraction form
    345,004.36/517,472.52 = 108,340.72/x
  3. Step 3: Cross multiply
    345,004.36x = 517,472.52 × 108,340.72
  4. Step 4: Simplify right side
    345,004.36x = 56,063,345,397.01
  5. Step 5: Solve for x
    x = 56,063,345,397.01/345,004.36
  6. Step 6: Final answer
    x = 162,500.40

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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.