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Finding the Fourth Proportional to 279,045.04, 418,107.48 and 160,815.76

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Solution

The fourth proportional to 279,045.04, 418,107.48 and 160,815.76 is: 240,958.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,045.04 : 418,107.48 = 160,815.76 : x
  2. Step 2: Convert to fraction form
    279,045.04/418,107.48 = 160,815.76/x
  3. Step 3: Cross multiply
    279,045.04x = 418,107.48 × 160,815.76
  4. Step 4: Simplify right side
    279,045.04x = 67,238,272,157.88
  5. Step 5: Solve for x
    x = 67,238,272,157.88/279,045.04
  6. Step 6: Final answer
    x = 240,958.49

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1.5x scale

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.