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Finding the Fourth Proportional to 274,165.93, 378,346.84 and 153,307.45

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Solution

The fourth proportional to 274,165.93, 378,346.84 and 153,307.45 is: 211,563.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,165.93 : 378,346.84 = 153,307.45 : x
  2. Step 2: Convert to fraction form
    274,165.93/378,346.84 = 153,307.45/x
  3. Step 3: Cross multiply
    274,165.93x = 378,346.84 × 153,307.45
  4. Step 4: Simplify right side
    274,165.93x = 58,003,389,255.96
  5. Step 5: Solve for x
    x = 58,003,389,255.96/274,165.93
  6. Step 6: Final answer
    x = 211,563.08

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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.