Home / 209,611.28-288,622.91-158,003.35

Finding the Fourth Proportional to 209,611.28, 288,622.91 and 158,003.35

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Solution

The fourth proportional to 209,611.28, 288,622.91 and 158,003.35 is: 217,561.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,611.28 : 288,622.91 = 158,003.35 : x
  2. Step 2: Convert to fraction form
    209,611.28/288,622.91 = 158,003.35/x
  3. Step 3: Cross multiply
    209,611.28x = 288,622.91 × 158,003.35
  4. Step 4: Simplify right side
    209,611.28x = 45,603,386,340.20
  5. Step 5: Solve for x
    x = 45,603,386,340.20/209,611.28
  6. Step 6: Final answer
    x = 217,561.70

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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.