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Finding the Fourth Proportional to 254,238, 349,604.28 and 220,645.68

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Solution

The fourth proportional to 254,238, 349,604.28 and 220,645.68 is: 303,411.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,238 : 349,604.28 = 220,645.68 : x
  2. Step 2: Convert to fraction form
    254,238/349,604.28 = 220,645.68/x
  3. Step 3: Cross multiply
    254,238x = 349,604.28 × 220,645.68
  4. Step 4: Simplify right side
    254,238x = 77,138,674,091.51
  5. Step 5: Solve for x
    x = 77,138,674,091.51/254,238
  6. Step 6: Final answer
    x = 303,411.27

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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.