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Finding the Fourth Proportional to 581.11, 801.95 and 360.34

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Solution

The fourth proportional to 581.11, 801.95 and 360.34 is: 497.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.11 : 801.95 = 360.34 : x
  2. Step 2: Convert to fraction form
    581.11/801.95 = 360.34/x
  3. Step 3: Cross multiply
    581.11x = 801.95 × 360.34
  4. Step 4: Simplify right side
    581.11x = 288,970.86
  5. Step 5: Solve for x
    x = 288,970.86/581.11
  6. Step 6: Final answer
    x = 497.28

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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.