Home / 429,251.08-643,482.42-148,572.04

Finding the Fourth Proportional to 429,251.08, 643,482.42 and 148,572.04

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Solution

The fourth proportional to 429,251.08, 643,482.42 and 148,572.04 is: 222,721.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,251.08 : 643,482.42 = 148,572.04 : x
  2. Step 2: Convert to fraction form
    429,251.08/643,482.42 = 148,572.04/x
  3. Step 3: Cross multiply
    429,251.08x = 643,482.42 × 148,572.04
  4. Step 4: Simplify right side
    429,251.08x = 95,603,495,843.54
  5. Step 5: Solve for x
    x = 95,603,495,843.54/429,251.08
  6. Step 6: Final answer
    x = 222,721.62

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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.