Home / 240,528.79-331,964.96-138,534.40

Finding the Fourth Proportional to 240,528.79, 331,964.96 and 138,534.40

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Solution

The fourth proportional to 240,528.79, 331,964.96 and 138,534.40 is: 191,197.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,528.79 : 331,964.96 = 138,534.40 : x
  2. Step 2: Convert to fraction form
    240,528.79/331,964.96 = 138,534.40/x
  3. Step 3: Cross multiply
    240,528.79x = 331,964.96 × 138,534.40
  4. Step 4: Simplify right side
    240,528.79x = 45,988,566,554.62
  5. Step 5: Solve for x
    x = 45,988,566,554.62/240,528.79
  6. Step 6: Final answer
    x = 191,197.76

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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.