Home / 308,188.20-425,308.79-172,222.47

Finding the Fourth Proportional to 308,188.20, 425,308.79 and 172,222.47

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Solution

The fourth proportional to 308,188.20, 425,308.79 and 172,222.47 is: 237,672.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,188.20 : 425,308.79 = 172,222.47 : x
  2. Step 2: Convert to fraction form
    308,188.20/425,308.79 = 172,222.47/x
  3. Step 3: Cross multiply
    308,188.20x = 425,308.79 × 172,222.47
  4. Step 4: Simplify right side
    308,188.20x = 73,247,730,326.51
  5. Step 5: Solve for x
    x = 73,247,730,326.51/308,188.20
  6. Step 6: Final answer
    x = 237,672.08

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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.