Home / 228,865.08-315,833.76-126,890.22

Finding the Fourth Proportional to 228,865.08, 315,833.76 and 126,890.22

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Solution

The fourth proportional to 228,865.08, 315,833.76 and 126,890.22 is: 175,108.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,865.08 : 315,833.76 = 126,890.22 : x
  2. Step 2: Convert to fraction form
    228,865.08/315,833.76 = 126,890.22/x
  3. Step 3: Cross multiply
    228,865.08x = 315,833.76 × 126,890.22
  4. Step 4: Simplify right side
    228,865.08x = 40,076,215,289.83
  5. Step 5: Solve for x
    x = 40,076,215,289.83/228,865.08
  6. Step 6: Final answer
    x = 175,108.48

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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.