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Finding the Fourth Proportional to 583.74, 876.06 and 309.99

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Solution

The fourth proportional to 583.74, 876.06 and 309.99 is: 465.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.74 : 876.06 = 309.99 : x
  2. Step 2: Convert to fraction form
    583.74/876.06 = 309.99/x
  3. Step 3: Cross multiply
    583.74x = 876.06 × 309.99
  4. Step 4: Simplify right side
    583.74x = 271,569.84
  5. Step 5: Solve for x
    x = 271,569.84/583.74
  6. Step 6: Final answer
    x = 465.22

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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.