Home / 209,257.48-288,780.98-113,770.76

Finding the Fourth Proportional to 209,257.48, 288,780.98 and 113,770.76

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Solution

The fourth proportional to 209,257.48, 288,780.98 and 113,770.76 is: 157,006.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,257.48 : 288,780.98 = 113,770.76 : x
  2. Step 2: Convert to fraction form
    209,257.48/288,780.98 = 113,770.76/x
  3. Step 3: Cross multiply
    209,257.48x = 288,780.98 × 113,770.76
  4. Step 4: Simplify right side
    209,257.48x = 32,854,831,568.14
  5. Step 5: Solve for x
    x = 32,854,831,568.14/209,257.48
  6. Step 6: Final answer
    x = 157,006.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.