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Finding the Fourth Proportional to 430.39, 594.01 and 253.38

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Solution

The fourth proportional to 430.39, 594.01 and 253.38 is: 349.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    430.39 : 594.01 = 253.38 : x
  2. Step 2: Convert to fraction form
    430.39/594.01 = 253.38/x
  3. Step 3: Cross multiply
    430.39x = 594.01 × 253.38
  4. Step 4: Simplify right side
    430.39x = 150,510.25
  5. Step 5: Solve for x
    x = 150,510.25/430.39
  6. Step 6: Final answer
    x = 349.71

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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.