Home / 228,558.20-315,406.86-127,959.80

Finding the Fourth Proportional to 228,558.20, 315,406.86 and 127,959.80

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Solution

The fourth proportional to 228,558.20, 315,406.86 and 127,959.80 is: 176,582.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,558.20 : 315,406.86 = 127,959.80 : x
  2. Step 2: Convert to fraction form
    228,558.20/315,406.86 = 127,959.80/x
  3. Step 3: Cross multiply
    228,558.20x = 315,406.86 × 127,959.80
  4. Step 4: Simplify right side
    228,558.20x = 40,359,398,724.23
  5. Step 5: Solve for x
    x = 40,359,398,724.23/228,558.20
  6. Step 6: Final answer
    x = 176,582.59

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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.