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Finding the Fourth Proportional to 583.00, 803.42 and 386.17

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Solution

The fourth proportional to 583.00, 803.42 and 386.17 is: 532.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.00 : 803.42 = 386.17 : x
  2. Step 2: Convert to fraction form
    583.00/803.42 = 386.17/x
  3. Step 3: Cross multiply
    583.00x = 803.42 × 386.17
  4. Step 4: Simplify right side
    583.00x = 310,254.21
  5. Step 5: Solve for x
    x = 310,254.21/583.00
  6. Step 6: Final answer
    x = 532.17

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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.