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Finding the Fourth Proportional to 236,444.40, 354,083.40 and 157,129.20

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Solution

The fourth proportional to 236,444.40, 354,083.40 and 157,129.20 is: 235,306.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,444.40 : 354,083.40 = 157,129.20 : x
  2. Step 2: Convert to fraction form
    236,444.40/354,083.40 = 157,129.20/x
  3. Step 3: Cross multiply
    236,444.40x = 354,083.40 × 157,129.20
  4. Step 4: Simplify right side
    236,444.40x = 55,636,841,375.28
  5. Step 5: Solve for x
    x = 55,636,841,375.28/236,444.40
  6. Step 6: Final answer
    x = 235,306.23

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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.