Home / 285,702.15-394,189.19-225,084.66

Finding the Fourth Proportional to 285,702.15, 394,189.19 and 225,084.66

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Solution

The fourth proportional to 285,702.15, 394,189.19 and 225,084.66 is: 310,553.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,702.15 : 394,189.19 = 225,084.66 : x
  2. Step 2: Convert to fraction form
    285,702.15/394,189.19 = 225,084.66/x
  3. Step 3: Cross multiply
    285,702.15x = 394,189.19 × 225,084.66
  4. Step 4: Simplify right side
    285,702.15x = 88,725,938,681.40
  5. Step 5: Solve for x
    x = 88,725,938,681.40/285,702.15
  6. Step 6: Final answer
    x = 310,553.98

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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.