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Finding the Fourth Proportional to 220,110.40, 330,165.60 and 115,134.40

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Solution

The fourth proportional to 220,110.40, 330,165.60 and 115,134.40 is: 172,701.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,110.40 : 330,165.60 = 115,134.40 : x
  2. Step 2: Convert to fraction form
    220,110.40/330,165.60 = 115,134.40/x
  3. Step 3: Cross multiply
    220,110.40x = 330,165.60 × 115,134.40
  4. Step 4: Simplify right side
    220,110.40x = 38,013,418,256.64
  5. Step 5: Solve for x
    x = 38,013,418,256.64/220,110.40
  6. Step 6: Final answer
    x = 172,701.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.