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Finding the Fourth Proportional to 303,749.59, 415,531.59 and 302,470.20

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Solution

The fourth proportional to 303,749.59, 415,531.59 and 302,470.20 is: 413,781.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,749.59 : 415,531.59 = 302,470.20 : x
  2. Step 2: Convert to fraction form
    303,749.59/415,531.59 = 302,470.20/x
  3. Step 3: Cross multiply
    303,749.59x = 415,531.59 × 302,470.20
  4. Step 4: Simplify right side
    303,749.59x = 125,685,922,377.44
  5. Step 5: Solve for x
    x = 125,685,922,377.44/303,749.59
  6. Step 6: Final answer
    x = 413,781.37

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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.