Home / 307,619.85-424,452.00-176,772.20

Finding the Fourth Proportional to 307,619.85, 424,452.00 and 176,772.20

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Solution

The fourth proportional to 307,619.85, 424,452.00 and 176,772.20 is: 243,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,619.85 : 424,452.00 = 176,772.20 : x
  2. Step 2: Convert to fraction form
    307,619.85/424,452.00 = 176,772.20/x
  3. Step 3: Cross multiply
    307,619.85x = 424,452.00 × 176,772.20
  4. Step 4: Simplify right side
    307,619.85x = 75,031,313,524.80
  5. Step 5: Solve for x
    x = 75,031,313,524.80/307,619.85
  6. Step 6: Final answer
    x = 243,909.20

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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.