Home / 287,769.60-396,668.16-216,046.08

Finding the Fourth Proportional to 287,769.60, 396,668.16 and 216,046.08

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Solution

The fourth proportional to 287,769.60, 396,668.16 and 216,046.08 is: 297,802.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,769.60 : 396,668.16 = 216,046.08 : x
  2. Step 2: Convert to fraction form
    287,769.60/396,668.16 = 216,046.08/x
  3. Step 3: Cross multiply
    287,769.60x = 396,668.16 × 216,046.08
  4. Step 4: Simplify right side
    287,769.60x = 85,698,601,028.81
  5. Step 5: Solve for x
    x = 85,698,601,028.81/287,769.60
  6. Step 6: Final answer
    x = 297,802.83

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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.