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Finding the Fourth Proportional to 603.99, 833.54 and 342

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Solution

The fourth proportional to 603.99, 833.54 and 342 is: 471.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.99 : 833.54 = 342 : x
  2. Step 2: Convert to fraction form
    603.99/833.54 = 342/x
  3. Step 3: Cross multiply
    603.99x = 833.54 × 342
  4. Step 4: Simplify right side
    603.99x = 285,068.97
  5. Step 5: Solve for x
    x = 285,068.97/603.99
  6. Step 6: Final answer
    x = 471.98

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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.