Home / 321,854.13-482,781.60-111,492.05

Finding the Fourth Proportional to 321,854.13, 482,781.60 and 111,492.05

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Solution

The fourth proportional to 321,854.13, 482,781.60 and 111,492.05 is: 167,238.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,854.13 : 482,781.60 = 111,492.05 : x
  2. Step 2: Convert to fraction form
    321,854.13/482,781.60 = 111,492.05/x
  3. Step 3: Cross multiply
    321,854.13x = 482,781.60 × 111,492.05
  4. Step 4: Simplify right side
    321,854.13x = 53,826,307,872.37
  5. Step 5: Solve for x
    x = 53,826,307,872.37/321,854.13
  6. Step 6: Final answer
    x = 167,238.21

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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.