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Finding the Fourth Proportional to 410,202.72, 615,300.43 and 143,900.85

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Solution

The fourth proportional to 410,202.72, 615,300.43 and 143,900.85 is: 215,849.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,202.72 : 615,300.43 = 143,900.85 : x
  2. Step 2: Convert to fraction form
    410,202.72/615,300.43 = 143,900.85/x
  3. Step 3: Cross multiply
    410,202.72x = 615,300.43 × 143,900.85
  4. Step 4: Simplify right side
    410,202.72x = 88,542,254,882.37
  5. Step 5: Solve for x
    x = 88,542,254,882.37/410,202.72
  6. Step 6: Final answer
    x = 215,849.99

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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.