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Finding the Fourth Proportional to 267,407.20, 401,110.80 and 259,631.20

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Solution

The fourth proportional to 267,407.20, 401,110.80 and 259,631.20 is: 389,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,407.20 : 401,110.80 = 259,631.20 : x
  2. Step 2: Convert to fraction form
    267,407.20/401,110.80 = 259,631.20/x
  3. Step 3: Cross multiply
    267,407.20x = 401,110.80 × 259,631.20
  4. Step 4: Simplify right side
    267,407.20x = 104,140,878,336.96
  5. Step 5: Solve for x
    x = 104,140,878,336.96/267,407.20
  6. Step 6: Final answer
    x = 389,446.80

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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.