Home / 315,966.29-436,033.77-172,726.43

Finding the Fourth Proportional to 315,966.29, 436,033.77 and 172,726.43

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Solution

The fourth proportional to 315,966.29, 436,033.77 and 172,726.43 is: 238,362.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,966.29 : 436,033.77 = 172,726.43 : x
  2. Step 2: Convert to fraction form
    315,966.29/436,033.77 = 172,726.43/x
  3. Step 3: Cross multiply
    315,966.29x = 436,033.77 × 172,726.43
  4. Step 4: Simplify right side
    315,966.29x = 75,314,556,451.54
  5. Step 5: Solve for x
    x = 75,314,556,451.54/315,966.29
  6. Step 6: Final answer
    x = 238,362.63

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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.