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Finding the Fourth Proportional to 220,178.40, 330,267.60 and 115,202.40

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Solution

The fourth proportional to 220,178.40, 330,267.60 and 115,202.40 is: 172,803.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,178.40 : 330,267.60 = 115,202.40 : x
  2. Step 2: Convert to fraction form
    220,178.40/330,267.60 = 115,202.40/x
  3. Step 3: Cross multiply
    220,178.40x = 330,267.60 × 115,202.40
  4. Step 4: Simplify right side
    220,178.40x = 38,047,620,162.24
  5. Step 5: Solve for x
    x = 38,047,620,162.24/220,178.40
  6. Step 6: Final answer
    x = 172,803.60

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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.