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Finding the Fourth Proportional to 293,791.70, 402,792.09 and 288,477.29

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Solution

The fourth proportional to 293,791.70, 402,792.09 and 288,477.29 is: 395,505.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,791.70 : 402,792.09 = 288,477.29 : x
  2. Step 2: Convert to fraction form
    293,791.70/402,792.09 = 288,477.29/x
  3. Step 3: Cross multiply
    293,791.70x = 402,792.09 × 288,477.29
  4. Step 4: Simplify right side
    293,791.70x = 116,196,368,542.68
  5. Step 5: Solve for x
    x = 116,196,368,542.68/293,791.70
  6. Step 6: Final answer
    x = 395,505.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.