Home / 372,021.41-513,200.26-243,035.39

Finding the Fourth Proportional to 372,021.41, 513,200.26 and 243,035.39

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Solution

The fourth proportional to 372,021.41, 513,200.26 and 243,035.39 is: 335,265.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,021.41 : 513,200.26 = 243,035.39 : x
  2. Step 2: Convert to fraction form
    372,021.41/513,200.26 = 243,035.39/x
  3. Step 3: Cross multiply
    372,021.41x = 513,200.26 × 243,035.39
  4. Step 4: Simplify right side
    372,021.41x = 124,725,825,337.20
  5. Step 5: Solve for x
    x = 124,725,825,337.20/372,021.41
  6. Step 6: Final answer
    x = 335,265.18

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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.