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Finding the Fourth Proportional to 228,100.88, 314,765.52 and 126,120.20

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Solution

The fourth proportional to 228,100.88, 314,765.52 and 126,120.20 is: 174,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,100.88 : 314,765.52 = 126,120.20 : x
  2. Step 2: Convert to fraction form
    228,100.88/314,765.52 = 126,120.20/x
  3. Step 3: Cross multiply
    228,100.88x = 314,765.52 × 126,120.20
  4. Step 4: Simplify right side
    228,100.88x = 39,698,290,335.50
  5. Step 5: Solve for x
    x = 39,698,290,335.50/228,100.88
  6. Step 6: Final answer
    x = 174,038.30

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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.