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Finding the Fourth Proportional to 440,993.40, 661,551.84 and 141,403.56

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Solution

The fourth proportional to 440,993.40, 661,551.84 and 141,403.56 is: 212,125.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,993.40 : 661,551.84 = 141,403.56 : x
  2. Step 2: Convert to fraction form
    440,993.40/661,551.84 = 141,403.56/x
  3. Step 3: Cross multiply
    440,993.40x = 661,551.84 × 141,403.56
  4. Step 4: Simplify right side
    440,993.40x = 93,545,785,300.55
  5. Step 5: Solve for x
    x = 93,545,785,300.55/440,993.40
  6. Step 6: Final answer
    x = 212,125.14

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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.