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Finding the Fourth Proportional to 279,014.22, 418,275.09 and 101,490.17

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Solution

The fourth proportional to 279,014.22, 418,275.09 and 101,490.17 is: 152,145.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,014.22 : 418,275.09 = 101,490.17 : x
  2. Step 2: Convert to fraction form
    279,014.22/418,275.09 = 101,490.17/x
  3. Step 3: Cross multiply
    279,014.22x = 418,275.09 × 101,490.17
  4. Step 4: Simplify right side
    279,014.22x = 42,450,807,899.49
  5. Step 5: Solve for x
    x = 42,450,807,899.49/279,014.22
  6. Step 6: Final answer
    x = 152,145.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.