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Finding the Fourth Proportional to 240,455, 360,448.10 and 100,253.72

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Solution

The fourth proportional to 240,455, 360,448.10 and 100,253.72 is: 150,282.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,455 : 360,448.10 = 100,253.72 : x
  2. Step 2: Convert to fraction form
    240,455/360,448.10 = 100,253.72/x
  3. Step 3: Cross multiply
    240,455x = 360,448.10 × 100,253.72
  4. Step 4: Simplify right side
    240,455x = 36,136,262,891.93
  5. Step 5: Solve for x
    x = 36,136,262,891.93/240,455
  6. Step 6: Final answer
    x = 150,282.85

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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.