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Finding the Fourth Proportional to 280,968.60, 421,452.90 and 160,902.30

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Solution

The fourth proportional to 280,968.60, 421,452.90 and 160,902.30 is: 241,353.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,968.60 : 421,452.90 = 160,902.30 : x
  2. Step 2: Convert to fraction form
    280,968.60/421,452.90 = 160,902.30/x
  3. Step 3: Cross multiply
    280,968.60x = 421,452.90 × 160,902.30
  4. Step 4: Simplify right side
    280,968.60x = 67,812,740,951.67
  5. Step 5: Solve for x
    x = 67,812,740,951.67/280,968.60
  6. Step 6: Final answer
    x = 241,353.45

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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.