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Finding the Fourth Proportional to 379,591.38, 569,387.28 and 99,108.63

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Solution

The fourth proportional to 379,591.38, 569,387.28 and 99,108.63 is: 148,663.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,591.38 : 569,387.28 = 99,108.63 : x
  2. Step 2: Convert to fraction form
    379,591.38/569,387.28 = 99,108.63/x
  3. Step 3: Cross multiply
    379,591.38x = 569,387.28 × 99,108.63
  4. Step 4: Simplify right side
    379,591.38x = 56,431,193,260.23
  5. Step 5: Solve for x
    x = 56,431,193,260.23/379,591.38
  6. Step 6: Final answer
    x = 148,663.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.