Home / 342,981.15-514,526.40-143,198.70

Finding the Fourth Proportional to 342,981.15, 514,526.40 and 143,198.70

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Solution

The fourth proportional to 342,981.15, 514,526.40 and 143,198.70 is: 214,820.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,981.15 : 514,526.40 = 143,198.70 : x
  2. Step 2: Convert to fraction form
    342,981.15/514,526.40 = 143,198.70/x
  3. Step 3: Cross multiply
    342,981.15x = 514,526.40 × 143,198.70
  4. Step 4: Simplify right side
    342,981.15x = 73,679,511,595.68
  5. Step 5: Solve for x
    x = 73,679,511,595.68/342,981.15
  6. Step 6: Final answer
    x = 214,820.88

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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.