Home / 429,037.08-643,593.45-159,168.35

Finding the Fourth Proportional to 429,037.08, 643,593.45 and 159,168.35

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Solution

The fourth proportional to 429,037.08, 643,593.45 and 159,168.35 is: 238,766.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,037.08 : 643,593.45 = 159,168.35 : x
  2. Step 2: Convert to fraction form
    429,037.08/643,593.45 = 159,168.35/x
  3. Step 3: Cross multiply
    429,037.08x = 643,593.45 × 159,168.35
  4. Step 4: Simplify right side
    429,037.08x = 102,439,707,507.31
  5. Step 5: Solve for x
    x = 102,439,707,507.31/429,037.08
  6. Step 6: Final answer
    x = 238,766.56

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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.