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Finding the Fourth Proportional to 240,987.86, 332,487.21 and 138,999.65

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Solution

The fourth proportional to 240,987.86, 332,487.21 and 138,999.65 is: 191,775.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,987.86 : 332,487.21 = 138,999.65 : x
  2. Step 2: Convert to fraction form
    240,987.86/332,487.21 = 138,999.65/x
  3. Step 3: Cross multiply
    240,987.86x = 332,487.21 × 138,999.65
  4. Step 4: Simplify right side
    240,987.86x = 46,215,604,678.29
  5. Step 5: Solve for x
    x = 46,215,604,678.29/240,987.86
  6. Step 6: Final answer
    x = 191,775.66

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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.