Home / 372,156.45-513,575.01-202,390.71

Finding the Fourth Proportional to 372,156.45, 513,575.01 and 202,390.71

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Solution

The fourth proportional to 372,156.45, 513,575.01 and 202,390.71 is: 279,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,156.45 : 513,575.01 = 202,390.71 : x
  2. Step 2: Convert to fraction form
    372,156.45/513,575.01 = 202,390.71/x
  3. Step 3: Cross multiply
    372,156.45x = 513,575.01 × 202,390.71
  4. Step 4: Simplify right side
    372,156.45x = 103,942,810,912.16
  5. Step 5: Solve for x
    x = 103,942,810,912.16/372,156.45
  6. Step 6: Final answer
    x = 279,298.70

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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.