Home / 308,149.20-425,221.65-170,322.32

Finding the Fourth Proportional to 308,149.20, 425,221.65 and 170,322.32

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Solution

The fourth proportional to 308,149.20, 425,221.65 and 170,322.32 is: 235,031.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,149.20 : 425,221.65 = 170,322.32 : x
  2. Step 2: Convert to fraction form
    308,149.20/425,221.65 = 170,322.32/x
  3. Step 3: Cross multiply
    308,149.20x = 425,221.65 × 170,322.32
  4. Step 4: Simplify right side
    308,149.20x = 72,424,735,816.12
  5. Step 5: Solve for x
    x = 72,424,735,816.12/308,149.20
  6. Step 6: Final answer
    x = 235,031.39

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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.