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Finding the Fourth Proportional to 295,617.60, 442,916.10 and 137,521.80

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Solution

The fourth proportional to 295,617.60, 442,916.10 and 137,521.80 is: 206,045.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,617.60 : 442,916.10 = 137,521.80 : x
  2. Step 2: Convert to fraction form
    295,617.60/442,916.10 = 137,521.80/x
  3. Step 3: Cross multiply
    295,617.60x = 442,916.10 × 137,521.80
  4. Step 4: Simplify right side
    295,617.60x = 60,910,619,320.98
  5. Step 5: Solve for x
    x = 60,910,619,320.98/295,617.60
  6. Step 6: Final answer
    x = 206,045.31

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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.