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Finding the Fourth Proportional to 481,807.61, 664,866.72 and 266,934.86

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Solution

The fourth proportional to 481,807.61, 664,866.72 and 266,934.86 is: 368,354.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,807.61 : 664,866.72 = 266,934.86 : x
  2. Step 2: Convert to fraction form
    481,807.61/664,866.72 = 266,934.86/x
  3. Step 3: Cross multiply
    481,807.61x = 664,866.72 × 266,934.86
  4. Step 4: Simplify right side
    481,807.61x = 177,476,101,497.53
  5. Step 5: Solve for x
    x = 177,476,101,497.53/481,807.61
  6. Step 6: Final answer
    x = 368,354.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.