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Finding the Fourth Proportional to 440,197.87, 660,053.50 and 136,507.81

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Solution

The fourth proportional to 440,197.87, 660,053.50 and 136,507.81 is: 204,686.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,197.87 : 660,053.50 = 136,507.81 : x
  2. Step 2: Convert to fraction form
    440,197.87/660,053.50 = 136,507.81/x
  3. Step 3: Cross multiply
    440,197.87x = 660,053.50 × 136,507.81
  4. Step 4: Simplify right side
    440,197.87x = 90,102,457,767.84
  5. Step 5: Solve for x
    x = 90,102,457,767.84/440,197.87
  6. Step 6: Final answer
    x = 204,686.26

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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.