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Finding the Fourth Proportional to 372,179.76, 513,610.48 and 202,415.10

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Solution

The fourth proportional to 372,179.76, 513,610.48 and 202,415.10 is: 279,334.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,179.76 : 513,610.48 = 202,415.10 : x
  2. Step 2: Convert to fraction form
    372,179.76/513,610.48 = 202,415.10/x
  3. Step 3: Cross multiply
    372,179.76x = 513,610.48 × 202,415.10
  4. Step 4: Simplify right side
    372,179.76x = 103,962,516,670.25
  5. Step 5: Solve for x
    x = 103,962,516,670.25/372,179.76
  6. Step 6: Final answer
    x = 279,334.15

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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.