Home / 260,827.72-391,386.95-140,882.25

Finding the Fourth Proportional to 260,827.72, 391,386.95 and 140,882.25

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Solution

The fourth proportional to 260,827.72, 391,386.95 and 140,882.25 is: 211,401.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,827.72 : 391,386.95 = 140,882.25 : x
  2. Step 2: Convert to fraction form
    260,827.72/391,386.95 = 140,882.25/x
  3. Step 3: Cross multiply
    260,827.72x = 391,386.95 × 140,882.25
  4. Step 4: Simplify right side
    260,827.72x = 55,139,474,136.64
  5. Step 5: Solve for x
    x = 55,139,474,136.64/260,827.72
  6. Step 6: Final answer
    x = 211,401.89

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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.