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Finding the Fourth Proportional to 239,877.58, 359,631.42 and 90,114.70

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Solution

The fourth proportional to 239,877.58, 359,631.42 and 90,114.70 is: 135,102.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,877.58 : 359,631.42 = 90,114.70 : x
  2. Step 2: Convert to fraction form
    239,877.58/359,631.42 = 90,114.70/x
  3. Step 3: Cross multiply
    239,877.58x = 359,631.42 × 90,114.70
  4. Step 4: Simplify right side
    239,877.58x = 32,408,077,523.87
  5. Step 5: Solve for x
    x = 32,408,077,523.87/239,877.58
  6. Step 6: Final answer
    x = 135,102.57

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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.