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Finding the Fourth Proportional to 288.26, 430.29 and 250.01

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Solution

The fourth proportional to 288.26, 430.29 and 250.01 is: 373.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    288.26 : 430.29 = 250.01 : x
  2. Step 2: Convert to fraction form
    288.26/430.29 = 250.01/x
  3. Step 3: Cross multiply
    288.26x = 430.29 × 250.01
  4. Step 4: Simplify right side
    288.26x = 107,575.55
  5. Step 5: Solve for x
    x = 107,575.55/288.26
  6. Step 6: Final answer
    x = 373.19

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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.