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Finding the Fourth Proportional to 230,287.25, 345,483.47 and 70,385.96

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Solution

The fourth proportional to 230,287.25, 345,483.47 and 70,385.96 is: 105,595.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,287.25 : 345,483.47 = 70,385.96 : x
  2. Step 2: Convert to fraction form
    230,287.25/345,483.47 = 70,385.96/x
  3. Step 3: Cross multiply
    230,287.25x = 345,483.47 × 70,385.96
  4. Step 4: Simplify right side
    230,287.25x = 24,317,186,739.75
  5. Step 5: Solve for x
    x = 24,317,186,739.75/230,287.25
  6. Step 6: Final answer
    x = 105,595.02

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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.