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Finding the Fourth Proportional to 202,456.95, 279,273.32 and 130,836.98

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Solution

The fourth proportional to 202,456.95, 279,273.32 and 130,836.98 is: 180,479.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,456.95 : 279,273.32 = 130,836.98 : x
  2. Step 2: Convert to fraction form
    202,456.95/279,273.32 = 130,836.98/x
  3. Step 3: Cross multiply
    202,456.95x = 279,273.32 × 130,836.98
  4. Step 4: Simplify right side
    202,456.95x = 36,539,276,915.62
  5. Step 5: Solve for x
    x = 36,539,276,915.62/202,456.95
  6. Step 6: Final answer
    x = 180,479.24

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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.