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Finding the Fourth Proportional to 581.02, 801.54 and 382.07

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Solution

The fourth proportional to 581.02, 801.54 and 382.07 is: 527.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.02 : 801.54 = 382.07 : x
  2. Step 2: Convert to fraction form
    581.02/801.54 = 382.07/x
  3. Step 3: Cross multiply
    581.02x = 801.54 × 382.07
  4. Step 4: Simplify right side
    581.02x = 306,244.39
  5. Step 5: Solve for x
    x = 306,244.39/581.02
  6. Step 6: Final answer
    x = 527.08

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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.