Home / 274,204.43-378,421.40-153,356.96

Finding the Fourth Proportional to 274,204.43, 378,421.40 and 153,356.96

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Solution

The fourth proportional to 274,204.43, 378,421.40 and 153,356.96 is: 211,643.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,204.43 : 378,421.40 = 153,356.96 : x
  2. Step 2: Convert to fraction form
    274,204.43/378,421.40 = 153,356.96/x
  3. Step 3: Cross multiply
    274,204.43x = 378,421.40 × 153,356.96
  4. Step 4: Simplify right side
    274,204.43x = 58,033,556,065.61
  5. Step 5: Solve for x
    x = 58,033,556,065.61/274,204.43
  6. Step 6: Final answer
    x = 211,643.39

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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.