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Finding the Fourth Proportional to 279,803.76, 386,060.76 and 179,337.84

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Solution

The fourth proportional to 279,803.76, 386,060.76 and 179,337.84 is: 247,442.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,803.76 : 386,060.76 = 179,337.84 : x
  2. Step 2: Convert to fraction form
    279,803.76/386,060.76 = 179,337.84/x
  3. Step 3: Cross multiply
    279,803.76x = 386,060.76 × 179,337.84
  4. Step 4: Simplify right side
    279,803.76x = 69,235,302,807.16
  5. Step 5: Solve for x
    x = 69,235,302,807.16/279,803.76
  6. Step 6: Final answer
    x = 247,442.36

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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.