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Finding the Fourth Proportional to 288,260.69, 397,683.91 and 180,791.51

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Solution

The fourth proportional to 288,260.69, 397,683.91 and 180,791.51 is: 249,419.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,260.69 : 397,683.91 = 180,791.51 : x
  2. Step 2: Convert to fraction form
    288,260.69/397,683.91 = 180,791.51/x
  3. Step 3: Cross multiply
    288,260.69x = 397,683.91 × 180,791.51
  4. Step 4: Simplify right side
    288,260.69x = 71,897,873,007.06
  5. Step 5: Solve for x
    x = 71,897,873,007.06/288,260.69
  6. Step 6: Final answer
    x = 249,419.63

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1.5x scale

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.