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Finding the Fourth Proportional to 228,464.30, 315,280.68 and 127,862.30

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Solution

The fourth proportional to 228,464.30, 315,280.68 and 127,862.30 is: 176,449.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,464.30 : 315,280.68 = 127,862.30 : x
  2. Step 2: Convert to fraction form
    228,464.30/315,280.68 = 127,862.30/x
  3. Step 3: Cross multiply
    228,464.30x = 315,280.68 × 127,862.30
  4. Step 4: Simplify right side
    228,464.30x = 40,312,511,313.96
  5. Step 5: Solve for x
    x = 40,312,511,313.96/228,464.30
  6. Step 6: Final answer
    x = 176,449.94

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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.