Home / 228,255.36-315,001.80-126,279.16

Finding the Fourth Proportional to 228,255.36, 315,001.80 and 126,279.16

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Solution

The fourth proportional to 228,255.36, 315,001.80 and 126,279.16 is: 174,270.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,255.36 : 315,001.80 = 126,279.16 : x
  2. Step 2: Convert to fraction form
    228,255.36/315,001.80 = 126,279.16/x
  3. Step 3: Cross multiply
    228,255.36x = 315,001.80 × 126,279.16
  4. Step 4: Simplify right side
    228,255.36x = 39,778,162,702.49
  5. Step 5: Solve for x
    x = 39,778,162,702.49/228,255.36
  6. Step 6: Final answer
    x = 174,270.44

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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.