Home / 372,185.60-513,601.30-202,419.86

Finding the Fourth Proportional to 372,185.60, 513,601.30 and 202,419.86

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Solution

The fourth proportional to 372,185.60, 513,601.30 and 202,419.86 is: 279,331.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,185.60 : 513,601.30 = 202,419.86 : x
  2. Step 2: Convert to fraction form
    372,185.60/513,601.30 = 202,419.86/x
  3. Step 3: Cross multiply
    372,185.60x = 513,601.30 × 202,419.86
  4. Step 4: Simplify right side
    372,185.60x = 103,963,103,241.82
  5. Step 5: Solve for x
    x = 103,963,103,241.82/372,185.60
  6. Step 6: Final answer
    x = 279,331.34

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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.