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Finding the Fourth Proportional to 381,075.01, 571,114.22 and 156,172.13

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Solution

The fourth proportional to 381,075.01, 571,114.22 and 156,172.13 is: 234,053.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,075.01 : 571,114.22 = 156,172.13 : x
  2. Step 2: Convert to fraction form
    381,075.01/571,114.22 = 156,172.13/x
  3. Step 3: Cross multiply
    381,075.01x = 571,114.22 × 156,172.13
  4. Step 4: Simplify right side
    381,075.01x = 89,192,124,857.61
  5. Step 5: Solve for x
    x = 89,192,124,857.61/381,075.01
  6. Step 6: Final answer
    x = 234,053.98

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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.