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Finding the Fourth Proportional to 436,274.26, 654,392.35 and 136,748

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Solution

The fourth proportional to 436,274.26, 654,392.35 and 136,748 is: 205,116.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,274.26 : 654,392.35 = 136,748 : x
  2. Step 2: Convert to fraction form
    436,274.26/654,392.35 = 136,748/x
  3. Step 3: Cross multiply
    436,274.26x = 654,392.35 × 136,748
  4. Step 4: Simplify right side
    436,274.26x = 89,486,845,077.80
  5. Step 5: Solve for x
    x = 89,486,845,077.80/436,274.26
  6. Step 6: Final answer
    x = 205,116.03

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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.