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Finding the Fourth Proportional to 215,203.67, 296,983.33 and 118,408.79

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Solution

The fourth proportional to 215,203.67, 296,983.33 and 118,408.79 is: 163,405.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,203.67 : 296,983.33 = 118,408.79 : x
  2. Step 2: Convert to fraction form
    215,203.67/296,983.33 = 118,408.79/x
  3. Step 3: Cross multiply
    215,203.67x = 296,983.33 × 118,408.79
  4. Step 4: Simplify right side
    215,203.67x = 35,165,435,531.38
  5. Step 5: Solve for x
    x = 35,165,435,531.38/215,203.67
  6. Step 6: Final answer
    x = 163,405.37

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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.