Home / 307,999.23-425,034.38-172,035.15

Finding the Fourth Proportional to 307,999.23, 425,034.38 and 172,035.15

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Solution

The fourth proportional to 307,999.23, 425,034.38 and 172,035.15 is: 237,405.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,999.23 : 425,034.38 = 172,035.15 : x
  2. Step 2: Convert to fraction form
    307,999.23/425,034.38 = 172,035.15/x
  3. Step 3: Cross multiply
    307,999.23x = 425,034.38 × 172,035.15
  4. Step 4: Simplify right side
    307,999.23x = 73,120,852,458.28
  5. Step 5: Solve for x
    x = 73,120,852,458.28/307,999.23
  6. Step 6: Final answer
    x = 237,405.96

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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.