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Finding the Fourth Proportional to 240,891.56, 332,421.53 and 138,921.32

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Solution

The fourth proportional to 240,891.56, 332,421.53 and 138,921.32 is: 191,706.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,891.56 : 332,421.53 = 138,921.32 : x
  2. Step 2: Convert to fraction form
    240,891.56/332,421.53 = 138,921.32/x
  3. Step 3: Cross multiply
    240,891.56x = 332,421.53 × 138,921.32
  4. Step 4: Simplify right side
    240,891.56x = 46,180,437,744.02
  5. Step 5: Solve for x
    x = 46,180,437,744.02/240,891.56
  6. Step 6: Final answer
    x = 191,706.33

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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.