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Finding the Fourth Proportional to 236,447.40, 354,566.10 and 86,648.52

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Solution

The fourth proportional to 236,447.40, 354,566.10 and 86,648.52 is: 129,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,447.40 : 354,566.10 = 86,648.52 : x
  2. Step 2: Convert to fraction form
    236,447.40/354,566.10 = 86,648.52/x
  3. Step 3: Cross multiply
    236,447.40x = 354,566.10 × 86,648.52
  4. Step 4: Simplify right side
    236,447.40x = 30,722,627,807.17
  5. Step 5: Solve for x
    x = 30,722,627,807.17/236,447.40
  6. Step 6: Final answer
    x = 129,934.30

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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.