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Finding the Fourth Proportional to 524.51, 723.78 and 288.46

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Solution

The fourth proportional to 524.51, 723.78 and 288.46 is: 398.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.51 : 723.78 = 288.46 : x
  2. Step 2: Convert to fraction form
    524.51/723.78 = 288.46/x
  3. Step 3: Cross multiply
    524.51x = 723.78 × 288.46
  4. Step 4: Simplify right side
    524.51x = 208,782.28
  5. Step 5: Solve for x
    x = 208,782.28/524.51
  6. Step 6: Final answer
    x = 398.05

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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.