Home / 220,211.10-330,316.65-53,999.10

Finding the Fourth Proportional to 220,211.10, 330,316.65 and 53,999.10

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Solution

The fourth proportional to 220,211.10, 330,316.65 and 53,999.10 is: 80,998.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,211.10 : 330,316.65 = 53,999.10 : x
  2. Step 2: Convert to fraction form
    220,211.10/330,316.65 = 53,999.10/x
  3. Step 3: Cross multiply
    220,211.10x = 330,316.65 × 53,999.10
  4. Step 4: Simplify right side
    220,211.10x = 17,836,801,815.02
  5. Step 5: Solve for x
    x = 17,836,801,815.02/220,211.10
  6. Step 6: Final answer
    x = 80,998.65

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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.