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Finding the Fourth Proportional to 259,037.44, 388,400.64 and 175,678.72

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Solution

The fourth proportional to 259,037.44, 388,400.64 and 175,678.72 is: 263,412.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,037.44 : 388,400.64 = 175,678.72 : x
  2. Step 2: Convert to fraction form
    259,037.44/388,400.64 = 175,678.72/x
  3. Step 3: Cross multiply
    259,037.44x = 388,400.64 × 175,678.72
  4. Step 4: Simplify right side
    259,037.44x = 68,233,727,282.38
  5. Step 5: Solve for x
    x = 68,233,727,282.38/259,037.44
  6. Step 6: Final answer
    x = 263,412.61

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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.