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Finding the Fourth Proportional to 240,615.20, 360,145.20 and 187,738.40

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Solution

The fourth proportional to 240,615.20, 360,145.20 and 187,738.40 is: 281,000.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,615.20 : 360,145.20 = 187,738.40 : x
  2. Step 2: Convert to fraction form
    240,615.20/360,145.20 = 187,738.40/x
  3. Step 3: Cross multiply
    240,615.20x = 360,145.20 × 187,738.40
  4. Step 4: Simplify right side
    240,615.20x = 67,613,083,615.68
  5. Step 5: Solve for x
    x = 67,613,083,615.68/240,615.20
  6. Step 6: Final answer
    x = 281,000.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.