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Finding the Fourth Proportional to 388.88, 586.79 and 373.88

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Solution

The fourth proportional to 388.88, 586.79 and 373.88 is: 564.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    388.88 : 586.79 = 373.88 : x
  2. Step 2: Convert to fraction form
    388.88/586.79 = 373.88/x
  3. Step 3: Cross multiply
    388.88x = 586.79 × 373.88
  4. Step 4: Simplify right side
    388.88x = 219,389.05
  5. Step 5: Solve for x
    x = 219,389.05/388.88
  6. Step 6: Final answer
    x = 564.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.