Home / 242,577.20-363,865.80-142,785.20

Finding the Fourth Proportional to 242,577.20, 363,865.80 and 142,785.20

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Solution

The fourth proportional to 242,577.20, 363,865.80 and 142,785.20 is: 214,177.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,577.20 : 363,865.80 = 142,785.20 : x
  2. Step 2: Convert to fraction form
    242,577.20/363,865.80 = 142,785.20/x
  3. Step 3: Cross multiply
    242,577.20x = 363,865.80 × 142,785.20
  4. Step 4: Simplify right side
    242,577.20x = 51,954,651,026.16
  5. Step 5: Solve for x
    x = 51,954,651,026.16/242,577.20
  6. Step 6: Final answer
    x = 214,177.80

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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.