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Finding the Fourth Proportional to 146,810.10, 220,215.15 and 145,427.70

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Solution

The fourth proportional to 146,810.10, 220,215.15 and 145,427.70 is: 218,141.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,810.10 : 220,215.15 = 145,427.70 : x
  2. Step 2: Convert to fraction form
    146,810.10/220,215.15 = 145,427.70/x
  3. Step 3: Cross multiply
    146,810.10x = 220,215.15 × 145,427.70
  4. Step 4: Simplify right side
    146,810.10x = 32,025,382,769.66
  5. Step 5: Solve for x
    x = 32,025,382,769.66/146,810.10
  6. Step 6: Final answer
    x = 218,141.55

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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.