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Finding the Fourth Proportional to 1,034.33, 1,551.65 and 340.87

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Solution

The fourth proportional to 1,034.33, 1,551.65 and 340.87 is: 511.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,034.33 : 1,551.65 = 340.87 : x
  2. Step 2: Convert to fraction form
    1,034.33/1,551.65 = 340.87/x
  3. Step 3: Cross multiply
    1,034.33x = 1,551.65 × 340.87
  4. Step 4: Simplify right side
    1,034.33x = 528,905.35
  5. Step 5: Solve for x
    x = 528,905.35/1,034.33
  6. Step 6: Final answer
    x = 511.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.