Home / 228,557.20-315,405.48-127,958.80

Finding the Fourth Proportional to 228,557.20, 315,405.48 and 127,958.80

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Solution

The fourth proportional to 228,557.20, 315,405.48 and 127,958.80 is: 176,581.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,557.20 : 315,405.48 = 127,958.80 : x
  2. Step 2: Convert to fraction form
    228,557.20/315,405.48 = 127,958.80/x
  3. Step 3: Cross multiply
    228,557.20x = 315,405.48 × 127,958.80
  4. Step 4: Simplify right side
    228,557.20x = 40,358,906,734.22
  5. Step 5: Solve for x
    x = 40,358,906,734.22/228,557.20
  6. Step 6: Final answer
    x = 176,581.21

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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.