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Finding the Fourth Proportional to 347,956.60, 480,411.39 and 267,239.88

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Solution

The fourth proportional to 347,956.60, 480,411.39 and 267,239.88 is: 368,968.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,956.60 : 480,411.39 = 267,239.88 : x
  2. Step 2: Convert to fraction form
    347,956.60/480,411.39 = 267,239.88/x
  3. Step 3: Cross multiply
    347,956.60x = 480,411.39 × 267,239.88
  4. Step 4: Simplify right side
    347,956.60x = 128,385,082,214.23
  5. Step 5: Solve for x
    x = 128,385,082,214.23/347,956.60
  6. Step 6: Final answer
    x = 368,968.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.