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Finding the Fourth Proportional to 379,418.02, 523,590.50 and 207,332.20

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Solution

The fourth proportional to 379,418.02, 523,590.50 and 207,332.20 is: 286,114.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,418.02 : 523,590.50 = 207,332.20 : x
  2. Step 2: Convert to fraction form
    379,418.02/523,590.50 = 207,332.20/x
  3. Step 3: Cross multiply
    379,418.02x = 523,590.50 × 207,332.20
  4. Step 4: Simplify right side
    379,418.02x = 108,557,170,264.10
  5. Step 5: Solve for x
    x = 108,557,170,264.10/379,418.02
  6. Step 6: Final answer
    x = 286,114.96

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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.