Home / 315,435.07-472,799.90-165,691.18

Finding the Fourth Proportional to 315,435.07, 472,799.90 and 165,691.18

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Solution

The fourth proportional to 315,435.07, 472,799.90 and 165,691.18 is: 248,351.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,435.07 : 472,799.90 = 165,691.18 : x
  2. Step 2: Convert to fraction form
    315,435.07/472,799.90 = 165,691.18/x
  3. Step 3: Cross multiply
    315,435.07x = 472,799.90 × 165,691.18
  4. Step 4: Simplify right side
    315,435.07x = 78,338,770,970.88
  5. Step 5: Solve for x
    x = 78,338,770,970.88/315,435.07
  6. Step 6: Final answer
    x = 248,351.50

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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.