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Finding the Fourth Proportional to 941.57, 1,411.35 and 356.30

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Solution

The fourth proportional to 941.57, 1,411.35 and 356.30 is: 534.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.57 : 1,411.35 = 356.30 : x
  2. Step 2: Convert to fraction form
    941.57/1,411.35 = 356.30/x
  3. Step 3: Cross multiply
    941.57x = 1,411.35 × 356.30
  4. Step 4: Simplify right side
    941.57x = 502,864.01
  5. Step 5: Solve for x
    x = 502,864.01/941.57
  6. Step 6: Final answer
    x = 534.07

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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.