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Finding the Fourth Proportional to 379,425.02, 523,600.16 and 207,339.20

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Solution

The fourth proportional to 379,425.02, 523,600.16 and 207,339.20 is: 286,124.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,425.02 : 523,600.16 = 207,339.20 : x
  2. Step 2: Convert to fraction form
    379,425.02/523,600.16 = 207,339.20/x
  3. Step 3: Cross multiply
    379,425.02x = 523,600.16 × 207,339.20
  4. Step 4: Simplify right side
    379,425.02x = 108,562,838,294.27
  5. Step 5: Solve for x
    x = 108,562,838,294.27/379,425.02
  6. Step 6: Final answer
    x = 286,124.62

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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.