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Finding the Fourth Proportional to 228,879.11, 315,840.53 and 126,898.62

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Solution

The fourth proportional to 228,879.11, 315,840.53 and 126,898.62 is: 175,113.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,879.11 : 315,840.53 = 126,898.62 : x
  2. Step 2: Convert to fraction form
    228,879.11/315,840.53 = 126,898.62/x
  3. Step 3: Cross multiply
    228,879.11x = 315,840.53 × 126,898.62
  4. Step 4: Simplify right side
    228,879.11x = 40,079,726,762.58
  5. Step 5: Solve for x
    x = 40,079,726,762.58/228,879.11
  6. Step 6: Final answer
    x = 175,113.08

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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.