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Finding the Fourth Proportional to 498,795.60, 748,047.60 and 178,910.40

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Solution

The fourth proportional to 498,795.60, 748,047.60 and 178,910.40 is: 268,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,795.60 : 748,047.60 = 178,910.40 : x
  2. Step 2: Convert to fraction form
    498,795.60/748,047.60 = 178,910.40/x
  3. Step 3: Cross multiply
    498,795.60x = 748,047.60 × 178,910.40
  4. Step 4: Simplify right side
    498,795.60x = 133,833,495,335.04
  5. Step 5: Solve for x
    x = 133,833,495,335.04/498,795.60
  6. Step 6: Final answer
    x = 268,313.30

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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.