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Finding the Fourth Proportional to 583.64, 874.88 and 218.22

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Solution

The fourth proportional to 583.64, 874.88 and 218.22 is: 327.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.64 : 874.88 = 218.22 : x
  2. Step 2: Convert to fraction form
    583.64/874.88 = 218.22/x
  3. Step 3: Cross multiply
    583.64x = 874.88 × 218.22
  4. Step 4: Simplify right side
    583.64x = 190,916.31
  5. Step 5: Solve for x
    x = 190,916.31/583.64
  6. Step 6: Final answer
    x = 327.11

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1.5x scale

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.