Home / 381,075.64-571,115.15-156,172.76

Finding the Fourth Proportional to 381,075.64, 571,115.15 and 156,172.76

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Solution

The fourth proportional to 381,075.64, 571,115.15 and 156,172.76 is: 234,054.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,075.64 : 571,115.15 = 156,172.76 : x
  2. Step 2: Convert to fraction form
    381,075.64/571,115.15 = 156,172.76/x
  3. Step 3: Cross multiply
    381,075.64x = 571,115.15 × 156,172.76
  4. Step 4: Simplify right side
    381,075.64x = 89,192,629,253.31
  5. Step 5: Solve for x
    x = 89,192,629,253.31/381,075.64
  6. Step 6: Final answer
    x = 234,054.92

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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.