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Finding the Fourth Proportional to 612,084.60, 918,125.55 and 162,805.55

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Solution

The fourth proportional to 612,084.60, 918,125.55 and 162,805.55 is: 244,207.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,084.60 : 918,125.55 = 162,805.55 : x
  2. Step 2: Convert to fraction form
    612,084.60/918,125.55 = 162,805.55/x
  3. Step 3: Cross multiply
    612,084.60x = 918,125.55 × 162,805.55
  4. Step 4: Simplify right side
    612,084.60x = 149,475,930,546.18
  5. Step 5: Solve for x
    x = 149,475,930,546.18/612,084.60
  6. Step 6: Final answer
    x = 244,207.96

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1.5x scale

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.