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Finding the Fourth Proportional to 240,444.65, 331,817.12 and 138,488.42

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Solution

The fourth proportional to 240,444.65, 331,817.12 and 138,488.42 is: 191,116.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,444.65 : 331,817.12 = 138,488.42 : x
  2. Step 2: Convert to fraction form
    240,444.65/331,817.12 = 138,488.42/x
  3. Step 3: Cross multiply
    240,444.65x = 331,817.12 × 138,488.42
  4. Step 4: Simplify right side
    240,444.65x = 45,952,828,814.85
  5. Step 5: Solve for x
    x = 45,952,828,814.85/240,444.65
  6. Step 6: Final answer
    x = 191,116.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.