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Finding the Fourth Proportional to 388.02, 579.27 and 337.06

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Solution

The fourth proportional to 388.02, 579.27 and 337.06 is: 503.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    388.02 : 579.27 = 337.06 : x
  2. Step 2: Convert to fraction form
    388.02/579.27 = 337.06/x
  3. Step 3: Cross multiply
    388.02x = 579.27 × 337.06
  4. Step 4: Simplify right side
    388.02x = 195,247.06
  5. Step 5: Solve for x
    x = 195,247.06/388.02
  6. Step 6: Final answer
    x = 503.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.