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Finding the Fourth Proportional to 240,713.51, 332,147.34 and 138,743.71

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Solution

The fourth proportional to 240,713.51, 332,147.34 and 138,743.71 is: 191,444.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,713.51 : 332,147.34 = 138,743.71 : x
  2. Step 2: Convert to fraction form
    240,713.51/332,147.34 = 138,743.71/x
  3. Step 3: Cross multiply
    240,713.51x = 332,147.34 × 138,743.71
  4. Step 4: Simplify right side
    240,713.51x = 46,083,353,387.86
  5. Step 5: Solve for x
    x = 46,083,353,387.86/240,713.51
  6. Step 6: Final answer
    x = 191,444.82

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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.