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Finding the Fourth Proportional to 240,890.56, 332,420.15 and 138,920.32

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Solution

The fourth proportional to 240,890.56, 332,420.15 and 138,920.32 is: 191,704.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,890.56 : 332,420.15 = 138,920.32 : x
  2. Step 2: Convert to fraction form
    240,890.56/332,420.15 = 138,920.32/x
  3. Step 3: Cross multiply
    240,890.56x = 332,420.15 × 138,920.32
  4. Step 4: Simplify right side
    240,890.56x = 46,179,913,612.45
  5. Step 5: Solve for x
    x = 46,179,913,612.45/240,890.56
  6. Step 6: Final answer
    x = 191,704.95

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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.