Home / 429,060.26-643,686.06-140,884.74

Finding the Fourth Proportional to 429,060.26, 643,686.06 and 140,884.74

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Solution

The fourth proportional to 429,060.26, 643,686.06 and 140,884.74 is: 211,358.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,060.26 : 643,686.06 = 140,884.74 : x
  2. Step 2: Convert to fraction form
    429,060.26/643,686.06 = 140,884.74/x
  3. Step 3: Cross multiply
    429,060.26x = 643,686.06 × 140,884.74
  4. Step 4: Simplify right side
    429,060.26x = 90,685,543,204.72
  5. Step 5: Solve for x
    x = 90,685,543,204.72/429,060.26
  6. Step 6: Final answer
    x = 211,358.52

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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.