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Finding the Fourth Proportional to 403,553.28, 605,703.36 and 204,014.40

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Solution

The fourth proportional to 403,553.28, 605,703.36 and 204,014.40 is: 306,210.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,553.28 : 605,703.36 = 204,014.40 : x
  2. Step 2: Convert to fraction form
    403,553.28/605,703.36 = 204,014.40/x
  3. Step 3: Cross multiply
    403,553.28x = 605,703.36 × 204,014.40
  4. Step 4: Simplify right side
    403,553.28x = 123,572,207,568.38
  5. Step 5: Solve for x
    x = 123,572,207,568.38/403,553.28
  6. Step 6: Final answer
    x = 306,210.39

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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.