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Finding the Fourth Proportional to 279,877.44, 386,230.98 and 159,018.89

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Solution

The fourth proportional to 279,877.44, 386,230.98 and 159,018.89 is: 219,446.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,877.44 : 386,230.98 = 159,018.89 : x
  2. Step 2: Convert to fraction form
    279,877.44/386,230.98 = 159,018.89/x
  3. Step 3: Cross multiply
    279,877.44x = 386,230.98 × 159,018.89
  4. Step 4: Simplify right side
    279,877.44x = 61,418,021,723.21
  5. Step 5: Solve for x
    x = 61,418,021,723.21/279,877.44
  6. Step 6: Final answer
    x = 219,446.13

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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.