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Finding the Fourth Proportional to 583.80, 805.62 and 373.68

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Solution

The fourth proportional to 583.80, 805.62 and 373.68 is: 515.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.80 : 805.62 = 373.68 : x
  2. Step 2: Convert to fraction form
    583.80/805.62 = 373.68/x
  3. Step 3: Cross multiply
    583.80x = 805.62 × 373.68
  4. Step 4: Simplify right side
    583.80x = 301,044.08
  5. Step 5: Solve for x
    x = 301,044.08/583.80
  6. Step 6: Final answer
    x = 515.66

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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.