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Finding the Fourth Proportional to 351,697.52, 527,546.96 and 85,458.28

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Solution

The fourth proportional to 351,697.52, 527,546.96 and 85,458.28 is: 128,187.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,697.52 : 527,546.96 = 85,458.28 : x
  2. Step 2: Convert to fraction form
    351,697.52/527,546.96 = 85,458.28/x
  3. Step 3: Cross multiply
    351,697.52x = 527,546.96 × 85,458.28
  4. Step 4: Simplify right side
    351,697.52x = 45,083,255,820.83
  5. Step 5: Solve for x
    x = 45,083,255,820.83/351,697.52
  6. Step 6: Final answer
    x = 128,187.59

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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.