Home / 287,512.54-396,770.02-158,455.66

Finding the Fourth Proportional to 287,512.54, 396,770.02 and 158,455.66

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Solution

The fourth proportional to 287,512.54, 396,770.02 and 158,455.66 is: 218,670.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,512.54 : 396,770.02 = 158,455.66 : x
  2. Step 2: Convert to fraction form
    287,512.54/396,770.02 = 158,455.66/x
  3. Step 3: Cross multiply
    287,512.54x = 396,770.02 × 158,455.66
  4. Step 4: Simplify right side
    287,512.54x = 62,870,455,387.31
  5. Step 5: Solve for x
    x = 62,870,455,387.31/287,512.54
  6. Step 6: Final answer
    x = 218,670.31

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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.