Home / 301,192.20-415,641.36-172,129.22

Finding the Fourth Proportional to 301,192.20, 415,641.36 and 172,129.22

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Solution

The fourth proportional to 301,192.20, 415,641.36 and 172,129.22 is: 237,536.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,192.20 : 415,641.36 = 172,129.22 : x
  2. Step 2: Convert to fraction form
    301,192.20/415,641.36 = 172,129.22/x
  3. Step 3: Cross multiply
    301,192.20x = 415,641.36 × 172,129.22
  4. Step 4: Simplify right side
    301,192.20x = 71,544,023,096.54
  5. Step 5: Solve for x
    x = 71,544,023,096.54/301,192.20
  6. Step 6: Final answer
    x = 237,536.11

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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.