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Finding the Fourth Proportional to 240,694.62, 332,114.31 and 138,705.78

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Solution

The fourth proportional to 240,694.62, 332,114.31 and 138,705.78 is: 191,388.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,694.62 : 332,114.31 = 138,705.78 : x
  2. Step 2: Convert to fraction form
    240,694.62/332,114.31 = 138,705.78/x
  3. Step 3: Cross multiply
    240,694.62x = 332,114.31 × 138,705.78
  4. Step 4: Simplify right side
    240,694.62x = 46,066,174,417.71
  5. Step 5: Solve for x
    x = 46,066,174,417.71/240,694.62
  6. Step 6: Final answer
    x = 191,388.47

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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.