Home / 308,133.48-425,208.66-172,140.42

Finding the Fourth Proportional to 308,133.48, 425,208.66 and 172,140.42

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Solution

The fourth proportional to 308,133.48, 425,208.66 and 172,140.42 is: 237,545.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,133.48 : 425,208.66 = 172,140.42 : x
  2. Step 2: Convert to fraction form
    308,133.48/425,208.66 = 172,140.42/x
  3. Step 3: Cross multiply
    308,133.48x = 425,208.66 × 172,140.42
  4. Step 4: Simplify right side
    308,133.48x = 73,195,597,320.04
  5. Step 5: Solve for x
    x = 73,195,597,320.04/308,133.48
  6. Step 6: Final answer
    x = 237,545.10

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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.