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Finding the Fourth Proportional to 343,505.39, 515,304.92 and 118,805.58

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Solution

The fourth proportional to 343,505.39, 515,304.92 and 118,805.58 is: 178,224.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,505.39 : 515,304.92 = 118,805.58 : x
  2. Step 2: Convert to fraction form
    343,505.39/515,304.92 = 118,805.58/x
  3. Step 3: Cross multiply
    343,505.39x = 515,304.92 × 118,805.58
  4. Step 4: Simplify right side
    343,505.39x = 61,221,100,194.47
  5. Step 5: Solve for x
    x = 61,221,100,194.47/343,505.39
  6. Step 6: Final answer
    x = 178,224.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.