Home / 316,183.08-436,343.02-172,943.10

Finding the Fourth Proportional to 316,183.08, 436,343.02 and 172,943.10

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Solution

The fourth proportional to 316,183.08, 436,343.02 and 172,943.10 is: 238,667.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,183.08 : 436,343.02 = 172,943.10 : x
  2. Step 2: Convert to fraction form
    316,183.08/436,343.02 = 172,943.10/x
  3. Step 3: Cross multiply
    316,183.08x = 436,343.02 × 172,943.10
  4. Step 4: Simplify right side
    316,183.08x = 75,462,514,542.16
  5. Step 5: Solve for x
    x = 75,462,514,542.16/316,183.08
  6. Step 6: Final answer
    x = 238,667.15

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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.