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Finding the Fourth Proportional to 430.18, 593.58 and 253.15

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Solution

The fourth proportional to 430.18, 593.58 and 253.15 is: 349.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    430.18 : 593.58 = 253.15 : x
  2. Step 2: Convert to fraction form
    430.18/593.58 = 253.15/x
  3. Step 3: Cross multiply
    430.18x = 593.58 × 253.15
  4. Step 4: Simplify right side
    430.18x = 150,264.78
  5. Step 5: Solve for x
    x = 150,264.78/430.18
  6. Step 6: Final answer
    x = 349.31

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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.