Home / 228,291.48-315,036.18-126,314.28

Finding the Fourth Proportional to 228,291.48, 315,036.18 and 126,314.28

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Solution

The fourth proportional to 228,291.48, 315,036.18 and 126,314.28 is: 174,310.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,291.48 : 315,036.18 = 126,314.28 : x
  2. Step 2: Convert to fraction form
    228,291.48/315,036.18 = 126,314.28/x
  3. Step 3: Cross multiply
    228,291.48x = 315,036.18 × 126,314.28
  4. Step 4: Simplify right side
    228,291.48x = 39,793,568,250.65
  5. Step 5: Solve for x
    x = 39,793,568,250.65/228,291.48
  6. Step 6: Final answer
    x = 174,310.35

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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.