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Finding the Fourth Proportional to 381,330.45, 571,995.68 and 301,614.30

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Solution

The fourth proportional to 381,330.45, 571,995.68 and 301,614.30 is: 452,421.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,330.45 : 571,995.68 = 301,614.30 : x
  2. Step 2: Convert to fraction form
    381,330.45/571,995.68 = 301,614.30/x
  3. Step 3: Cross multiply
    381,330.45x = 571,995.68 × 301,614.30
  4. Step 4: Simplify right side
    381,330.45x = 172,522,075,118.15
  5. Step 5: Solve for x
    x = 172,522,075,118.15/381,330.45
  6. Step 6: Final answer
    x = 452,421.45

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Similar ratio
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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.