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Finding the Fourth Proportional to 236,874.72, 355,452 and 87,220.08

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Solution

The fourth proportional to 236,874.72, 355,452 and 87,220.08 is: 130,881.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,874.72 : 355,452 = 87,220.08 : x
  2. Step 2: Convert to fraction form
    236,874.72/355,452 = 87,220.08/x
  3. Step 3: Cross multiply
    236,874.72x = 355,452 × 87,220.08
  4. Step 4: Simplify right side
    236,874.72x = 31,002,551,876.16
  5. Step 5: Solve for x
    x = 31,002,551,876.16/236,874.72
  6. Step 6: Final answer
    x = 130,881.64

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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.