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Finding the Fourth Proportional to 259.29, 389.48 and 151.02

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Solution

The fourth proportional to 259.29, 389.48 and 151.02 is: 226.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.29 : 389.48 = 151.02 : x
  2. Step 2: Convert to fraction form
    259.29/389.48 = 151.02/x
  3. Step 3: Cross multiply
    259.29x = 389.48 × 151.02
  4. Step 4: Simplify right side
    259.29x = 58,818.51
  5. Step 5: Solve for x
    x = 58,818.51/259.29
  6. Step 6: Final answer
    x = 226.84

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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.