Home / 309,985.06-465,026.19-132,493

Finding the Fourth Proportional to 309,985.06, 465,026.19 and 132,493

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Solution

The fourth proportional to 309,985.06, 465,026.19 and 132,493 is: 198,760.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,985.06 : 465,026.19 = 132,493 : x
  2. Step 2: Convert to fraction form
    309,985.06/465,026.19 = 132,493/x
  3. Step 3: Cross multiply
    309,985.06x = 465,026.19 × 132,493
  4. Step 4: Simplify right side
    309,985.06x = 61,612,714,991.67
  5. Step 5: Solve for x
    x = 61,612,714,991.67/309,985.06
  6. Step 6: Final answer
    x = 198,760.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.