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Finding the Fourth Proportional to 230,255.16, 345,365.88 and 72,528.72

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Solution

The fourth proportional to 230,255.16, 345,365.88 and 72,528.72 is: 108,787.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,255.16 : 345,365.88 = 72,528.72 : x
  2. Step 2: Convert to fraction form
    230,255.16/345,365.88 = 72,528.72/x
  3. Step 3: Cross multiply
    230,255.16x = 345,365.88 × 72,528.72
  4. Step 4: Simplify right side
    230,255.16x = 25,048,945,208.07
  5. Step 5: Solve for x
    x = 25,048,945,208.07/230,255.16
  6. Step 6: Final answer
    x = 108,787.77

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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.