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Finding the Fourth Proportional to 236,622.57, 354,722.34 and 86,828.13

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Solution

The fourth proportional to 236,622.57, 354,722.34 and 86,828.13 is: 130,164.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,622.57 : 354,722.34 = 86,828.13 : x
  2. Step 2: Convert to fraction form
    236,622.57/354,722.34 = 86,828.13/x
  3. Step 3: Cross multiply
    236,622.57x = 354,722.34 × 86,828.13
  4. Step 4: Simplify right side
    236,622.57x = 30,799,877,451.42
  5. Step 5: Solve for x
    x = 30,799,877,451.42/236,622.57
  6. Step 6: Final answer
    x = 130,164.58

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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.