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Finding the Fourth Proportional to 288,992.70, 433,489.05 and 240,003.90

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Solution

The fourth proportional to 288,992.70, 433,489.05 and 240,003.90 is: 360,005.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,992.70 : 433,489.05 = 240,003.90 : x
  2. Step 2: Convert to fraction form
    288,992.70/433,489.05 = 240,003.90/x
  3. Step 3: Cross multiply
    288,992.70x = 433,489.05 × 240,003.90
  4. Step 4: Simplify right side
    288,992.70x = 104,039,062,607.30
  5. Step 5: Solve for x
    x = 104,039,062,607.30/288,992.70
  6. Step 6: Final answer
    x = 360,005.85

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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.