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Finding the Fourth Proportional to 225,348.30, 310,980.72 and 124,746.30

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Solution

The fourth proportional to 225,348.30, 310,980.72 and 124,746.30 is: 172,149.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,348.30 : 310,980.72 = 124,746.30 : x
  2. Step 2: Convert to fraction form
    225,348.30/310,980.72 = 124,746.30/x
  3. Step 3: Cross multiply
    225,348.30x = 310,980.72 × 124,746.30
  4. Step 4: Simplify right side
    225,348.30x = 38,793,694,191.34
  5. Step 5: Solve for x
    x = 38,793,694,191.34/225,348.30
  6. Step 6: Final answer
    x = 172,149.93

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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.