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Finding the Fourth Proportional to 388,671.39, 583,007.09 and 222,342.75

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Solution

The fourth proportional to 388,671.39, 583,007.09 and 222,342.75 is: 333,514.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,671.39 : 583,007.09 = 222,342.75 : x
  2. Step 2: Convert to fraction form
    388,671.39/583,007.09 = 222,342.75/x
  3. Step 3: Cross multiply
    388,671.39x = 583,007.09 × 222,342.75
  4. Step 4: Simplify right side
    388,671.39x = 129,627,398,548.38
  5. Step 5: Solve for x
    x = 129,627,398,548.38/388,671.39
  6. Step 6: Final answer
    x = 333,514.13

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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.