Home / 286,222.96-394,967.86-158,888.50

Finding the Fourth Proportional to 286,222.96, 394,967.86 and 158,888.50

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Solution

The fourth proportional to 286,222.96, 394,967.86 and 158,888.50 is: 219,255.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,222.96 : 394,967.86 = 158,888.50 : x
  2. Step 2: Convert to fraction form
    286,222.96/394,967.86 = 158,888.50/x
  3. Step 3: Cross multiply
    286,222.96x = 394,967.86 × 158,888.50
  4. Step 4: Simplify right side
    286,222.96x = 62,755,850,823.61
  5. Step 5: Solve for x
    x = 62,755,850,823.61/286,222.96
  6. Step 6: Final answer
    x = 219,255.12

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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.