Home / 308,086.45-425,117.22-172,103.59

Finding the Fourth Proportional to 308,086.45, 425,117.22 and 172,103.59

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Solution

The fourth proportional to 308,086.45, 425,117.22 and 172,103.59 is: 237,479.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,086.45 : 425,117.22 = 172,103.59 : x
  2. Step 2: Convert to fraction form
    308,086.45/425,117.22 = 172,103.59/x
  3. Step 3: Cross multiply
    308,086.45x = 425,117.22 × 172,103.59
  4. Step 4: Simplify right side
    308,086.45x = 73,164,199,732.82
  5. Step 5: Solve for x
    x = 73,164,199,732.82/308,086.45
  6. Step 6: Final answer
    x = 237,479.45

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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.