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Finding the Fourth Proportional to 528.03, 727.91 and 341.45

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Solution

The fourth proportional to 528.03, 727.91 and 341.45 is: 470.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.03 : 727.91 = 341.45 : x
  2. Step 2: Convert to fraction form
    528.03/727.91 = 341.45/x
  3. Step 3: Cross multiply
    528.03x = 727.91 × 341.45
  4. Step 4: Simplify right side
    528.03x = 248,544.98
  5. Step 5: Solve for x
    x = 248,544.98/528.03
  6. Step 6: Final answer
    x = 470.70

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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.