Home / 315,184.13-472,712.63-115,436.31

Finding the Fourth Proportional to 315,184.13, 472,712.63 and 115,436.31

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Solution

The fourth proportional to 315,184.13, 472,712.63 and 115,436.31 is: 173,131.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,184.13 : 472,712.63 = 115,436.31 : x
  2. Step 2: Convert to fraction form
    315,184.13/472,712.63 = 115,436.31/x
  3. Step 3: Cross multiply
    315,184.13x = 472,712.63 × 115,436.31
  4. Step 4: Simplify right side
    315,184.13x = 54,568,201,120.41
  5. Step 5: Solve for x
    x = 54,568,201,120.41/315,184.13
  6. Step 6: Final answer
    x = 173,131.19

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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.