Home / 381,008.13-571,607.25-268,907.34

Finding the Fourth Proportional to 381,008.13, 571,607.25 and 268,907.34

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Solution

The fourth proportional to 381,008.13, 571,607.25 and 268,907.34 is: 403,428.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,008.13 : 571,607.25 = 268,907.34 : x
  2. Step 2: Convert to fraction form
    381,008.13/571,607.25 = 268,907.34/x
  3. Step 3: Cross multiply
    381,008.13x = 571,607.25 × 268,907.34
  4. Step 4: Simplify right side
    381,008.13x = 153,709,385,122.22
  5. Step 5: Solve for x
    x = 153,709,385,122.22/381,008.13
  6. Step 6: Final answer
    x = 403,428.10

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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.