Home / 279,176.76-418,560.99-89,529.18

Finding the Fourth Proportional to 279,176.76, 418,560.99 and 89,529.18

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Solution

The fourth proportional to 279,176.76, 418,560.99 and 89,529.18 is: 134,228.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,176.76 : 418,560.99 = 89,529.18 : x
  2. Step 2: Convert to fraction form
    279,176.76/418,560.99 = 89,529.18/x
  3. Step 3: Cross multiply
    279,176.76x = 418,560.99 × 89,529.18
  4. Step 4: Simplify right side
    279,176.76x = 37,473,421,969.70
  5. Step 5: Solve for x
    x = 37,473,421,969.70/279,176.76
  6. Step 6: Final answer
    x = 134,228.30

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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.