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Finding the Fourth Proportional to 351,750.04, 527,620.48 and 85,509.80

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Solution

The fourth proportional to 351,750.04, 527,620.48 and 85,509.80 is: 128,263.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,750.04 : 527,620.48 = 85,509.80 : x
  2. Step 2: Convert to fraction form
    351,750.04/527,620.48 = 85,509.80/x
  3. Step 3: Cross multiply
    351,750.04x = 527,620.48 × 85,509.80
  4. Step 4: Simplify right side
    351,750.04x = 45,116,721,720.70
  5. Step 5: Solve for x
    x = 45,116,721,720.70/351,750.04
  6. Step 6: Final answer
    x = 128,263.59

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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.