Home / 308,145.36-425,197.92-172,162.20

Finding the Fourth Proportional to 308,145.36, 425,197.92 and 172,162.20

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Solution

The fourth proportional to 308,145.36, 425,197.92 and 172,162.20 is: 237,559.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,145.36 : 425,197.92 = 172,162.20 : x
  2. Step 2: Convert to fraction form
    308,145.36/425,197.92 = 172,162.20/x
  3. Step 3: Cross multiply
    308,145.36x = 425,197.92 × 172,162.20
  4. Step 4: Simplify right side
    308,145.36x = 73,203,009,342.62
  5. Step 5: Solve for x
    x = 73,203,009,342.62/308,145.36
  6. Step 6: Final answer
    x = 237,559.99

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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.