Home / 228,595.20-315,457.92-127,996.80

Finding the Fourth Proportional to 228,595.20, 315,457.92 and 127,996.80

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Solution

The fourth proportional to 228,595.20, 315,457.92 and 127,996.80 is: 176,633.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,595.20 : 315,457.92 = 127,996.80 : x
  2. Step 2: Convert to fraction form
    228,595.20/315,457.92 = 127,996.80/x
  3. Step 3: Cross multiply
    228,595.20x = 315,457.92 × 127,996.80
  4. Step 4: Simplify right side
    228,595.20x = 40,377,604,294.66
  5. Step 5: Solve for x
    x = 40,377,604,294.66/228,595.20
  6. Step 6: Final answer
    x = 176,633.65

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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.