Home / 385,914.46-578,819.15-101,581.20

Finding the Fourth Proportional to 385,914.46, 578,819.15 and 101,581.20

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Solution

The fourth proportional to 385,914.46, 578,819.15 and 101,581.20 is: 152,357.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,914.46 : 578,819.15 = 101,581.20 : x
  2. Step 2: Convert to fraction form
    385,914.46/578,819.15 = 101,581.20/x
  3. Step 3: Cross multiply
    385,914.46x = 578,819.15 × 101,581.20
  4. Step 4: Simplify right side
    385,914.46x = 58,797,146,144.11
  5. Step 5: Solve for x
    x = 58,797,146,144.11/385,914.46
  6. Step 6: Final answer
    x = 152,357.98

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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.