Home / 287,541.69-396,809.12-166,754.60

Finding the Fourth Proportional to 287,541.69, 396,809.12 and 166,754.60

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Solution

The fourth proportional to 287,541.69, 396,809.12 and 166,754.60 is: 230,122.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,541.69 : 396,809.12 = 166,754.60 : x
  2. Step 2: Convert to fraction form
    287,541.69/396,809.12 = 166,754.60/x
  3. Step 3: Cross multiply
    287,541.69x = 396,809.12 × 166,754.60
  4. Step 4: Simplify right side
    287,541.69x = 66,169,743,264.13
  5. Step 5: Solve for x
    x = 66,169,743,264.13/287,541.69
  6. Step 6: Final answer
    x = 230,122.26

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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.