Home / 220,365.12-330,460-80,047.04

Finding the Fourth Proportional to 220,365.12, 330,460 and 80,047.04

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Solution

The fourth proportional to 220,365.12, 330,460 and 80,047.04 is: 120,038.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,365.12 : 330,460 = 80,047.04 : x
  2. Step 2: Convert to fraction form
    220,365.12/330,460 = 80,047.04/x
  3. Step 3: Cross multiply
    220,365.12x = 330,460 × 80,047.04
  4. Step 4: Simplify right side
    220,365.12x = 26,452,344,838.40
  5. Step 5: Solve for x
    x = 26,452,344,838.40/220,365.12
  6. Step 6: Final answer
    x = 120,038.71

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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.