Home / 388,729.39-583,094.09-222,400.75

Finding the Fourth Proportional to 388,729.39, 583,094.09 and 222,400.75

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Solution

The fourth proportional to 388,729.39, 583,094.09 and 222,400.75 is: 333,601.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,729.39 : 583,094.09 = 222,400.75 : x
  2. Step 2: Convert to fraction form
    388,729.39/583,094.09 = 222,400.75/x
  3. Step 3: Cross multiply
    388,729.39x = 583,094.09 × 222,400.75
  4. Step 4: Simplify right side
    388,729.39x = 129,680,562,936.57
  5. Step 5: Solve for x
    x = 129,680,562,936.57/388,729.39
  6. Step 6: Final answer
    x = 333,601.13

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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.