Home / 381,312.28-571,972.50-115,075.18

Finding the Fourth Proportional to 381,312.28, 571,972.50 and 115,075.18

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Solution

The fourth proportional to 381,312.28, 571,972.50 and 115,075.18 is: 172,614.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,312.28 : 571,972.50 = 115,075.18 : x
  2. Step 2: Convert to fraction form
    381,312.28/571,972.50 = 115,075.18/x
  3. Step 3: Cross multiply
    381,312.28x = 571,972.50 × 115,075.18
  4. Step 4: Simplify right side
    381,312.28x = 65,819,838,392.55
  5. Step 5: Solve for x
    x = 65,819,838,392.55/381,312.28
  6. Step 6: Final answer
    x = 172,614.00

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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.