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Finding the Fourth Proportional to 528,207.60, 792,138.60 and 195,740.40

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Solution

The fourth proportional to 528,207.60, 792,138.60 and 195,740.40 is: 293,546.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,207.60 : 792,138.60 = 195,740.40 : x
  2. Step 2: Convert to fraction form
    528,207.60/792,138.60 = 195,740.40/x
  3. Step 3: Cross multiply
    528,207.60x = 792,138.60 × 195,740.40
  4. Step 4: Simplify right side
    528,207.60x = 155,053,526,419.44
  5. Step 5: Solve for x
    x = 155,053,526,419.44/528,207.60
  6. Step 6: Final answer
    x = 293,546.56

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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.