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Finding the Fourth Proportional to 236,341, 326,151.60 and 128,913.34

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Solution

The fourth proportional to 236,341, 326,151.60 and 128,913.34 is: 177,900.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,341 : 326,151.60 = 128,913.34 : x
  2. Step 2: Convert to fraction form
    236,341/326,151.60 = 128,913.34/x
  3. Step 3: Cross multiply
    236,341x = 326,151.60 × 128,913.34
  4. Step 4: Simplify right side
    236,341x = 42,045,292,102.34
  5. Step 5: Solve for x
    x = 42,045,292,102.34/236,341
  6. Step 6: Final answer
    x = 177,900.97

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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.