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Finding the Fourth Proportional to 379,080.57, 523,152.54 and 207,014.55

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Solution

The fourth proportional to 379,080.57, 523,152.54 and 207,014.55 is: 285,691.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,080.57 : 523,152.54 = 207,014.55 : x
  2. Step 2: Convert to fraction form
    379,080.57/523,152.54 = 207,014.55/x
  3. Step 3: Cross multiply
    379,080.57x = 523,152.54 × 207,014.55
  4. Step 4: Simplify right side
    379,080.57x = 108,300,187,649.46
  5. Step 5: Solve for x
    x = 108,300,187,649.46/379,080.57
  6. Step 6: Final answer
    x = 285,691.74

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1.5x scale

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.