Home / 285,836.40-394,454.12-158,512.01

Finding the Fourth Proportional to 285,836.40, 394,454.12 and 158,512.01

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Solution

The fourth proportional to 285,836.40, 394,454.12 and 158,512.01 is: 218,746.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,836.40 : 394,454.12 = 158,512.01 : x
  2. Step 2: Convert to fraction form
    285,836.40/394,454.12 = 158,512.01/x
  3. Step 3: Cross multiply
    285,836.40x = 394,454.12 × 158,512.01
  4. Step 4: Simplify right side
    285,836.40x = 62,525,712,649.15
  5. Step 5: Solve for x
    x = 62,525,712,649.15/285,836.40
  6. Step 6: Final answer
    x = 218,746.50

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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.