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Finding the Fourth Proportional to 430.50, 593.93 and 253.31

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Solution

The fourth proportional to 430.50, 593.93 and 253.31 is: 349.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    430.50 : 593.93 = 253.31 : x
  2. Step 2: Convert to fraction form
    430.50/593.93 = 253.31/x
  3. Step 3: Cross multiply
    430.50x = 593.93 × 253.31
  4. Step 4: Simplify right side
    430.50x = 150,444.17
  5. Step 5: Solve for x
    x = 150,444.17/430.50
  6. Step 6: Final answer
    x = 349.46

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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.