Home / 207,597.20-311,136.60-152,128.40

Finding the Fourth Proportional to 207,597.20, 311,136.60 and 152,128.40

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Solution

The fourth proportional to 207,597.20, 311,136.60 and 152,128.40 is: 228,002.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,597.20 : 311,136.60 = 152,128.40 : x
  2. Step 2: Convert to fraction form
    207,597.20/311,136.60 = 152,128.40/x
  3. Step 3: Cross multiply
    207,597.20x = 311,136.60 × 152,128.40
  4. Step 4: Simplify right side
    207,597.20x = 47,332,713,139.44
  5. Step 5: Solve for x
    x = 47,332,713,139.44/207,597.20
  6. Step 6: Final answer
    x = 228,002.66

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1.5x scale

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.