Home / 315,984.13-436,058.02-172,744.13

Finding the Fourth Proportional to 315,984.13, 436,058.02 and 172,744.13

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Solution

The fourth proportional to 315,984.13, 436,058.02 and 172,744.13 is: 238,386.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,984.13 : 436,058.02 = 172,744.13 : x
  2. Step 2: Convert to fraction form
    315,984.13/436,058.02 = 172,744.13/x
  3. Step 3: Cross multiply
    315,984.13x = 436,058.02 × 172,744.13
  4. Step 4: Simplify right side
    315,984.13x = 75,326,463,294.42
  5. Step 5: Solve for x
    x = 75,326,463,294.42/315,984.13
  6. Step 6: Final answer
    x = 238,386.86

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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.