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Finding the Fourth Proportional to 267,780.96, 401,415.03 and 99,256.05

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Solution

The fourth proportional to 267,780.96, 401,415.03 and 99,256.05 is: 148,789.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,780.96 : 401,415.03 = 99,256.05 : x
  2. Step 2: Convert to fraction form
    267,780.96/401,415.03 = 99,256.05/x
  3. Step 3: Cross multiply
    267,780.96x = 401,415.03 × 99,256.05
  4. Step 4: Simplify right side
    267,780.96x = 39,842,870,288.43
  5. Step 5: Solve for x
    x = 39,842,870,288.43/267,780.96
  6. Step 6: Final answer
    x = 148,789.03

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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.