Home / 215,057.60-322,586.40-144,555.20

Finding the Fourth Proportional to 215,057.60, 322,586.40 and 144,555.20

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Solution

The fourth proportional to 215,057.60, 322,586.40 and 144,555.20 is: 216,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,057.60 : 322,586.40 = 144,555.20 : x
  2. Step 2: Convert to fraction form
    215,057.60/322,586.40 = 144,555.20/x
  3. Step 3: Cross multiply
    215,057.60x = 322,586.40 × 144,555.20
  4. Step 4: Simplify right side
    215,057.60x = 46,631,541,569.28
  5. Step 5: Solve for x
    x = 46,631,541,569.28/215,057.60
  6. Step 6: Final answer
    x = 216,832.80

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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.