Home / 215,905.02-324,138.18-166,020.16

Finding the Fourth Proportional to 215,905.02, 324,138.18 and 166,020.16

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Solution

The fourth proportional to 215,905.02, 324,138.18 and 166,020.16 is: 249,246.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,905.02 : 324,138.18 = 166,020.16 : x
  2. Step 2: Convert to fraction form
    215,905.02/324,138.18 = 166,020.16/x
  3. Step 3: Cross multiply
    215,905.02x = 324,138.18 × 166,020.16
  4. Step 4: Simplify right side
    215,905.02x = 53,813,471,547.13
  5. Step 5: Solve for x
    x = 53,813,471,547.13/215,905.02
  6. Step 6: Final answer
    x = 249,246.04

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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.