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Finding the Fourth Proportional to 243,837.26, 365,768.12 and 77,638.22

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Solution

The fourth proportional to 243,837.26, 365,768.12 and 77,638.22 is: 116,461.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,837.26 : 365,768.12 = 77,638.22 : x
  2. Step 2: Convert to fraction form
    243,837.26/365,768.12 = 77,638.22/x
  3. Step 3: Cross multiply
    243,837.26x = 365,768.12 × 77,638.22
  4. Step 4: Simplify right side
    243,837.26x = 28,397,584,134.80
  5. Step 5: Solve for x
    x = 28,397,584,134.80/243,837.26
  6. Step 6: Final answer
    x = 116,461.22

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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.