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Finding the Fourth Proportional to 286,150.20, 429,419.70 and 159,790.20

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Solution

The fourth proportional to 286,150.20, 429,419.70 and 159,790.20 is: 239,793.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,150.20 : 429,419.70 = 159,790.20 : x
  2. Step 2: Convert to fraction form
    286,150.20/429,419.70 = 159,790.20/x
  3. Step 3: Cross multiply
    286,150.20x = 429,419.70 × 159,790.20
  4. Step 4: Simplify right side
    286,150.20x = 68,617,059,746.94
  5. Step 5: Solve for x
    x = 68,617,059,746.94/286,150.20
  6. Step 6: Final answer
    x = 239,793.86

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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.