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Finding the Fourth Proportional to 497,139.40, 745,833.30 and 160,211.80

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Solution

The fourth proportional to 497,139.40, 745,833.30 and 160,211.80 is: 240,357.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,139.40 : 745,833.30 = 160,211.80 : x
  2. Step 2: Convert to fraction form
    497,139.40/745,833.30 = 160,211.80/x
  3. Step 3: Cross multiply
    497,139.40x = 745,833.30 × 160,211.80
  4. Step 4: Simplify right side
    497,139.40x = 119,491,295,492.94
  5. Step 5: Solve for x
    x = 119,491,295,492.94/497,139.40
  6. Step 6: Final answer
    x = 240,357.73

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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.