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Finding the Fourth Proportional to 440,147.40, 659,455.65 and 203,003.70

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Solution

The fourth proportional to 440,147.40, 659,455.65 and 203,003.70 is: 304,152.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,147.40 : 659,455.65 = 203,003.70 : x
  2. Step 2: Convert to fraction form
    440,147.40/659,455.65 = 203,003.70/x
  3. Step 3: Cross multiply
    440,147.40x = 659,455.65 × 203,003.70
  4. Step 4: Simplify right side
    440,147.40x = 133,871,936,935.91
  5. Step 5: Solve for x
    x = 133,871,936,935.91/440,147.40
  6. Step 6: Final answer
    x = 304,152.51

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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.