Home / 429,869.28-645,302.10-230,578.92

Finding the Fourth Proportional to 429,869.28, 645,302.10 and 230,578.92

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Solution

The fourth proportional to 429,869.28, 645,302.10 and 230,578.92 is: 346,135.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,869.28 : 645,302.10 = 230,578.92 : x
  2. Step 2: Convert to fraction form
    429,869.28/645,302.10 = 230,578.92/x
  3. Step 3: Cross multiply
    429,869.28x = 645,302.10 × 230,578.92
  4. Step 4: Simplify right side
    429,869.28x = 148,793,061,291.73
  5. Step 5: Solve for x
    x = 148,793,061,291.73/429,869.28
  6. Step 6: Final answer
    x = 346,135.60

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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.