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Finding the Fourth Proportional to 228,116.80, 314,789.52 and 127,514.80

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Solution

The fourth proportional to 228,116.80, 314,789.52 and 127,514.80 is: 175,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,116.80 : 314,789.52 = 127,514.80 : x
  2. Step 2: Convert to fraction form
    228,116.80/314,789.52 = 127,514.80/x
  3. Step 3: Cross multiply
    228,116.80x = 314,789.52 × 127,514.80
  4. Step 4: Simplify right side
    228,116.80x = 40,140,322,684.90
  5. Step 5: Solve for x
    x = 40,140,322,684.90/228,116.80
  6. Step 6: Final answer
    x = 175,963.90

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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.