Home / 372,031.55-513,512.78-242,989.73

Finding the Fourth Proportional to 372,031.55, 513,512.78 and 242,989.73

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Solution

The fourth proportional to 372,031.55, 513,512.78 and 242,989.73 is: 335,397.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,031.55 : 513,512.78 = 242,989.73 : x
  2. Step 2: Convert to fraction form
    372,031.55/513,512.78 = 242,989.73/x
  3. Step 3: Cross multiply
    372,031.55x = 513,512.78 × 242,989.73
  4. Step 4: Simplify right side
    372,031.55x = 124,778,333,655.01
  5. Step 5: Solve for x
    x = 124,778,333,655.01/372,031.55
  6. Step 6: Final answer
    x = 335,397.19

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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.