Home / 286,095.18-394,720.02-165,220.50

Finding the Fourth Proportional to 286,095.18, 394,720.02 and 165,220.50

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Solution

The fourth proportional to 286,095.18, 394,720.02 and 165,220.50 is: 227,951.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,095.18 : 394,720.02 = 165,220.50 : x
  2. Step 2: Convert to fraction form
    286,095.18/394,720.02 = 165,220.50/x
  3. Step 3: Cross multiply
    286,095.18x = 394,720.02 × 165,220.50
  4. Step 4: Simplify right side
    286,095.18x = 65,215,839,064.41
  5. Step 5: Solve for x
    x = 65,215,839,064.41/286,095.18
  6. Step 6: Final answer
    x = 227,951.55

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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.