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Finding the Fourth Proportional to 340.18, 469.28 and 277.26

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Solution

The fourth proportional to 340.18, 469.28 and 277.26 is: 382.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.18 : 469.28 = 277.26 : x
  2. Step 2: Convert to fraction form
    340.18/469.28 = 277.26/x
  3. Step 3: Cross multiply
    340.18x = 469.28 × 277.26
  4. Step 4: Simplify right side
    340.18x = 130,113.91
  5. Step 5: Solve for x
    x = 130,113.91/340.18
  6. Step 6: Final answer
    x = 382.48

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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.