Home / 209,610.53-288,621.88-158,002.60

Finding the Fourth Proportional to 209,610.53, 288,621.88 and 158,002.60

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Solution

The fourth proportional to 209,610.53, 288,621.88 and 158,002.60 is: 217,560.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,610.53 : 288,621.88 = 158,002.60 : x
  2. Step 2: Convert to fraction form
    209,610.53/288,621.88 = 158,002.60/x
  3. Step 3: Cross multiply
    209,610.53x = 288,621.88 × 158,002.60
  4. Step 4: Simplify right side
    209,610.53x = 45,603,006,340.33
  5. Step 5: Solve for x
    x = 45,603,006,340.33/209,610.53
  6. Step 6: Final answer
    x = 217,560.66

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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.