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Finding the Fourth Proportional to 430.37, 593.86 and 253.39

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Solution

The fourth proportional to 430.37, 593.86 and 253.39 is: 349.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    430.37 : 593.86 = 253.39 : x
  2. Step 2: Convert to fraction form
    430.37/593.86 = 253.39/x
  3. Step 3: Cross multiply
    430.37x = 593.86 × 253.39
  4. Step 4: Simplify right side
    430.37x = 150,475.22
  5. Step 5: Solve for x
    x = 150,475.22/430.37
  6. Step 6: Final answer
    x = 349.64

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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.