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Finding the Fourth Proportional to 251,755.59, 377,633.39 and 85,543.59

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Solution

The fourth proportional to 251,755.59, 377,633.39 and 85,543.59 is: 128,315.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,755.59 : 377,633.39 = 85,543.59 : x
  2. Step 2: Convert to fraction form
    251,755.59/377,633.39 = 85,543.59/x
  3. Step 3: Cross multiply
    251,755.59x = 377,633.39 × 85,543.59
  4. Step 4: Simplify right side
    251,755.59x = 32,304,117,354.06
  5. Step 5: Solve for x
    x = 32,304,117,354.06/251,755.59
  6. Step 6: Final answer
    x = 128,315.39

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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.