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Finding the Fourth Proportional to 229,308.60, 343,995.30 and 71,520.60

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Solution

The fourth proportional to 229,308.60, 343,995.30 and 71,520.60 is: 107,291.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,308.60 : 343,995.30 = 71,520.60 : x
  2. Step 2: Convert to fraction form
    229,308.60/343,995.30 = 71,520.60/x
  3. Step 3: Cross multiply
    229,308.60x = 343,995.30 × 71,520.60
  4. Step 4: Simplify right side
    229,308.60x = 24,602,750,253.18
  5. Step 5: Solve for x
    x = 24,602,750,253.18/229,308.60
  6. Step 6: Final answer
    x = 107,291.01

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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.