Home / 220,812.60-304,722.54-120,211.32

Finding the Fourth Proportional to 220,812.60, 304,722.54 and 120,211.32

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Solution

The fourth proportional to 220,812.60, 304,722.54 and 120,211.32 is: 165,892.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,812.60 : 304,722.54 = 120,211.32 : x
  2. Step 2: Convert to fraction form
    220,812.60/304,722.54 = 120,211.32/x
  3. Step 3: Cross multiply
    220,812.60x = 304,722.54 × 120,211.32
  4. Step 4: Simplify right side
    220,812.60x = 36,631,098,767.15
  5. Step 5: Solve for x
    x = 36,631,098,767.15/220,812.60
  6. Step 6: Final answer
    x = 165,892.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.