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Finding the Fourth Proportional to 400,065, 552,099.28 and 227,979.28

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Solution

The fourth proportional to 400,065, 552,099.28 and 227,979.28 is: 314,616.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,065 : 552,099.28 = 227,979.28 : x
  2. Step 2: Convert to fraction form
    400,065/552,099.28 = 227,979.28/x
  3. Step 3: Cross multiply
    400,065x = 552,099.28 × 227,979.28
  4. Step 4: Simplify right side
    400,065x = 125,867,196,342.92
  5. Step 5: Solve for x
    x = 125,867,196,342.92/400,065
  6. Step 6: Final answer
    x = 314,616.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.