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Finding the Fourth Proportional to 583.20, 875.08 and 290.73

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Solution

The fourth proportional to 583.20, 875.08 and 290.73 is: 436.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.20 : 875.08 = 290.73 : x
  2. Step 2: Convert to fraction form
    583.20/875.08 = 290.73/x
  3. Step 3: Cross multiply
    583.20x = 875.08 × 290.73
  4. Step 4: Simplify right side
    583.20x = 254,412.01
  5. Step 5: Solve for x
    x = 254,412.01/583.20
  6. Step 6: Final answer
    x = 436.23

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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.