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Finding the Fourth Proportional to 267,614.40, 401,421.60 and 178,910.40

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Solution

The fourth proportional to 267,614.40, 401,421.60 and 178,910.40 is: 268,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,614.40 : 401,421.60 = 178,910.40 : x
  2. Step 2: Convert to fraction form
    267,614.40/401,421.60 = 178,910.40/x
  3. Step 3: Cross multiply
    267,614.40x = 401,421.60 × 178,910.40
  4. Step 4: Simplify right side
    267,614.40x = 71,818,499,024.64
  5. Step 5: Solve for x
    x = 71,818,499,024.64/267,614.40
  6. Step 6: Final answer
    x = 268,365.60

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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.