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Finding the Fourth Proportional to 229,863.60, 344,892.60 and 145,688.40

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Solution

The fourth proportional to 229,863.60, 344,892.60 and 145,688.40 is: 218,594.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,863.60 : 344,892.60 = 145,688.40 : x
  2. Step 2: Convert to fraction form
    229,863.60/344,892.60 = 145,688.40/x
  3. Step 3: Cross multiply
    229,863.60x = 344,892.60 × 145,688.40
  4. Step 4: Simplify right side
    229,863.60x = 50,246,851,065.84
  5. Step 5: Solve for x
    x = 50,246,851,065.84/229,863.60
  6. Step 6: Final answer
    x = 218,594.21

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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.