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Finding the Fourth Proportional to 207,225.20, 310,837.80 and 157,458.80

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Solution

The fourth proportional to 207,225.20, 310,837.80 and 157,458.80 is: 236,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,225.20 : 310,837.80 = 157,458.80 : x
  2. Step 2: Convert to fraction form
    207,225.20/310,837.80 = 157,458.80/x
  3. Step 3: Cross multiply
    207,225.20x = 310,837.80 × 157,458.80
  4. Step 4: Simplify right side
    207,225.20x = 48,944,146,982.64
  5. Step 5: Solve for x
    x = 48,944,146,982.64/207,225.20
  6. Step 6: Final answer
    x = 236,188.20

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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.