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Finding the Fourth Proportional to 293,801.69, 402,805.84 and 288,487.28

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Solution

The fourth proportional to 293,801.69, 402,805.84 and 288,487.28 is: 395,519.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,801.69 : 402,805.84 = 288,487.28 : x
  2. Step 2: Convert to fraction form
    293,801.69/402,805.84 = 288,487.28/x
  3. Step 3: Cross multiply
    293,801.69x = 402,805.84 × 288,487.28
  4. Step 4: Simplify right side
    293,801.69x = 116,204,361,149.72
  5. Step 5: Solve for x
    x = 116,204,361,149.72/293,801.69
  6. Step 6: Final answer
    x = 395,519.72

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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.