Home / 429,058.26-643,683.06-140,882.74

Finding the Fourth Proportional to 429,058.26, 643,683.06 and 140,882.74

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Solution

The fourth proportional to 429,058.26, 643,683.06 and 140,882.74 is: 211,355.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,058.26 : 643,683.06 = 140,882.74 : x
  2. Step 2: Convert to fraction form
    429,058.26/643,683.06 = 140,882.74/x
  3. Step 3: Cross multiply
    429,058.26x = 643,683.06 × 140,882.74
  4. Step 4: Simplify right side
    429,058.26x = 90,683,833,184.38
  5. Step 5: Solve for x
    x = 90,683,833,184.38/429,058.26
  6. Step 6: Final answer
    x = 211,355.52

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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.