Home / 260,865.10-391,032.87-148,312.66

Finding the Fourth Proportional to 260,865.10, 391,032.87 and 148,312.66

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Solution

The fourth proportional to 260,865.10, 391,032.87 and 148,312.66 is: 222,318.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,865.10 : 391,032.87 = 148,312.66 : x
  2. Step 2: Convert to fraction form
    260,865.10/391,032.87 = 148,312.66/x
  3. Step 3: Cross multiply
    260,865.10x = 391,032.87 × 148,312.66
  4. Step 4: Simplify right side
    260,865.10x = 57,995,125,097.13
  5. Step 5: Solve for x
    x = 57,995,125,097.13/260,865.10
  6. Step 6: Final answer
    x = 222,318.45

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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.