Home / 429,149.82-643,746.57-144,850.74

Finding the Fourth Proportional to 429,149.82, 643,746.57 and 144,850.74

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Solution

The fourth proportional to 429,149.82, 643,746.57 and 144,850.74 is: 217,283.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,149.82 : 643,746.57 = 144,850.74 : x
  2. Step 2: Convert to fraction form
    429,149.82/643,746.57 = 144,850.74/x
  3. Step 3: Cross multiply
    429,149.82x = 643,746.57 × 144,850.74
  4. Step 4: Simplify right side
    429,149.82x = 93,247,167,036.96
  5. Step 5: Solve for x
    x = 93,247,167,036.96/429,149.82
  6. Step 6: Final answer
    x = 217,283.48

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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.