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Finding the Fourth Proportional to 379,360.79, 523,517.06 and 207,279.98

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Solution

The fourth proportional to 379,360.79, 523,517.06 and 207,279.98 is: 286,045.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,360.79 : 523,517.06 = 207,279.98 : x
  2. Step 2: Convert to fraction form
    379,360.79/523,517.06 = 207,279.98/x
  3. Step 3: Cross multiply
    379,360.79x = 523,517.06 × 207,279.98
  4. Step 4: Simplify right side
    379,360.79x = 108,514,605,402.48
  5. Step 5: Solve for x
    x = 108,514,605,402.48/379,360.79
  6. Step 6: Final answer
    x = 286,045.92

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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.