Home / 287,823.61-397,196.97-158,759.19

Finding the Fourth Proportional to 287,823.61, 397,196.97 and 158,759.19

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Solution

The fourth proportional to 287,823.61, 397,196.97 and 158,759.19 is: 219,087.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,823.61 : 397,196.97 = 158,759.19 : x
  2. Step 2: Convert to fraction form
    287,823.61/397,196.97 = 158,759.19/x
  3. Step 3: Cross multiply
    287,823.61x = 397,196.97 × 158,759.19
  4. Step 4: Simplify right side
    287,823.61x = 63,058,668,632.31
  5. Step 5: Solve for x
    x = 63,058,668,632.31/287,823.61
  6. Step 6: Final answer
    x = 219,087.89

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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.