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Finding the Fourth Proportional to 350,229.60, 525,373.56 and 139,752.72

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Solution

The fourth proportional to 350,229.60, 525,373.56 and 139,752.72 is: 209,640.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,229.60 : 525,373.56 = 139,752.72 : x
  2. Step 2: Convert to fraction form
    350,229.60/525,373.56 = 139,752.72/x
  3. Step 3: Cross multiply
    350,229.60x = 525,373.56 × 139,752.72
  4. Step 4: Simplify right side
    350,229.60x = 73,422,384,026.08
  5. Step 5: Solve for x
    x = 73,422,384,026.08/350,229.60
  6. Step 6: Final answer
    x = 209,640.72

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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.