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Finding the Fourth Proportional to 230,277.34, 345,428.34 and 72,518.08

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Solution

The fourth proportional to 230,277.34, 345,428.34 and 72,518.08 is: 108,781.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,277.34 : 345,428.34 = 72,518.08 : x
  2. Step 2: Convert to fraction form
    230,277.34/345,428.34 = 72,518.08/x
  3. Step 3: Cross multiply
    230,277.34x = 345,428.34 × 72,518.08
  4. Step 4: Simplify right side
    230,277.34x = 25,049,799,994.39
  5. Step 5: Solve for x
    x = 25,049,799,994.39/230,277.34
  6. Step 6: Final answer
    x = 108,781.00

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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.