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Finding the Fourth Proportional to 429.99, 593.40 and 243.51

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Solution

The fourth proportional to 429.99, 593.40 and 243.51 is: 336.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    429.99 : 593.40 = 243.51 : x
  2. Step 2: Convert to fraction form
    429.99/593.40 = 243.51/x
  3. Step 3: Cross multiply
    429.99x = 593.40 × 243.51
  4. Step 4: Simplify right side
    429.99x = 144,498.83
  5. Step 5: Solve for x
    x = 144,498.83/429.99
  6. Step 6: Final answer
    x = 336.05

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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.