Home / 351,820.80-527,564.88-127,137.60

Finding the Fourth Proportional to 351,820.80, 527,564.88 and 127,137.60

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Solution

The fourth proportional to 351,820.80, 527,564.88 and 127,137.60 is: 190,646.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,820.80 : 527,564.88 = 127,137.60 : x
  2. Step 2: Convert to fraction form
    351,820.80/527,564.88 = 127,137.60/x
  3. Step 3: Cross multiply
    351,820.80x = 527,564.88 × 127,137.60
  4. Step 4: Simplify right side
    351,820.80x = 67,073,332,687.49
  5. Step 5: Solve for x
    x = 67,073,332,687.49/351,820.80
  6. Step 6: Final answer
    x = 190,646.30

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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.