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Finding the Fourth Proportional to 350,849.60, 526,274.40 and 280,865.60

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Solution

The fourth proportional to 350,849.60, 526,274.40 and 280,865.60 is: 421,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,849.60 : 526,274.40 = 280,865.60 : x
  2. Step 2: Convert to fraction form
    350,849.60/526,274.40 = 280,865.60/x
  3. Step 3: Cross multiply
    350,849.60x = 526,274.40 × 280,865.60
  4. Step 4: Simplify right side
    350,849.60x = 147,812,375,120.64
  5. Step 5: Solve for x
    x = 147,812,375,120.64/350,849.60
  6. Step 6: Final answer
    x = 421,298.40

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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.