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Finding the Fourth Proportional to 472,239.92, 651,672.08 and 257,375.36

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Solution

The fourth proportional to 472,239.92, 651,672.08 and 257,375.36 is: 355,167.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,239.92 : 651,672.08 = 257,375.36 : x
  2. Step 2: Convert to fraction form
    472,239.92/651,672.08 = 257,375.36/x
  3. Step 3: Cross multiply
    472,239.92x = 651,672.08 × 257,375.36
  4. Step 4: Simplify right side
    472,239.92x = 167,724,336,191.95
  5. Step 5: Solve for x
    x = 167,724,336,191.95/472,239.92
  6. Step 6: Final answer
    x = 355,167.64

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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.