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Finding the Fourth Proportional to 279,438.40, 418,827.48 and 119,467.52

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Solution

The fourth proportional to 279,438.40, 418,827.48 and 119,467.52 is: 179,060.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,438.40 : 418,827.48 = 119,467.52 : x
  2. Step 2: Convert to fraction form
    279,438.40/418,827.48 = 119,467.52/x
  3. Step 3: Cross multiply
    279,438.40x = 418,827.48 × 119,467.52
  4. Step 4: Simplify right side
    279,438.40x = 50,036,280,343.45
  5. Step 5: Solve for x
    x = 50,036,280,343.45/279,438.40
  6. Step 6: Final answer
    x = 179,060.14

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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.