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Finding the Fourth Proportional to 341.07, 469.98 and 281.40

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Solution

The fourth proportional to 341.07, 469.98 and 281.40 is: 387.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.07 : 469.98 = 281.40 : x
  2. Step 2: Convert to fraction form
    341.07/469.98 = 281.40/x
  3. Step 3: Cross multiply
    341.07x = 469.98 × 281.40
  4. Step 4: Simplify right side
    341.07x = 132,252.37
  5. Step 5: Solve for x
    x = 132,252.37/341.07
  6. Step 6: Final answer
    x = 387.76

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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.