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Finding the Fourth Proportional to 274,323.22, 378,548.26 and 153,443.78

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Solution

The fourth proportional to 274,323.22, 378,548.26 and 153,443.78 is: 211,742.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,323.22 : 378,548.26 = 153,443.78 : x
  2. Step 2: Convert to fraction form
    274,323.22/378,548.26 = 153,443.78/x
  3. Step 3: Cross multiply
    274,323.22x = 378,548.26 × 153,443.78
  4. Step 4: Simplify right side
    274,323.22x = 58,085,875,926.82
  5. Step 5: Solve for x
    x = 58,085,875,926.82/274,323.22
  6. Step 6: Final answer
    x = 211,742.47

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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.