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Finding the Fourth Proportional to 228,282.75, 315,031.28 and 127,680.75

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Solution

The fourth proportional to 228,282.75, 315,031.28 and 127,680.75 is: 176,200.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,282.75 : 315,031.28 = 127,680.75 : x
  2. Step 2: Convert to fraction form
    228,282.75/315,031.28 = 127,680.75/x
  3. Step 3: Cross multiply
    228,282.75x = 315,031.28 × 127,680.75
  4. Step 4: Simplify right side
    228,282.75x = 40,223,429,465.46
  5. Step 5: Solve for x
    x = 40,223,429,465.46/228,282.75
  6. Step 6: Final answer
    x = 176,200.04

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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.