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Finding the Fourth Proportional to 230,174.80, 345,262.20 and 72,451.60

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Solution

The fourth proportional to 230,174.80, 345,262.20 and 72,451.60 is: 108,677.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,174.80 : 345,262.20 = 72,451.60 : x
  2. Step 2: Convert to fraction form
    230,174.80/345,262.20 = 72,451.60/x
  3. Step 3: Cross multiply
    230,174.80x = 345,262.20 × 72,451.60
  4. Step 4: Simplify right side
    230,174.80x = 25,014,798,809.52
  5. Step 5: Solve for x
    x = 25,014,798,809.52/230,174.80
  6. Step 6: Final answer
    x = 108,677.40

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1.5x scale

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.