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Finding the Fourth Proportional to 1,200.48, 1,800.68 and 334.76

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Solution

The fourth proportional to 1,200.48, 1,800.68 and 334.76 is: 502.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200.48 : 1,800.68 = 334.76 : x
  2. Step 2: Convert to fraction form
    1,200.48/1,800.68 = 334.76/x
  3. Step 3: Cross multiply
    1,200.48x = 1,800.68 × 334.76
  4. Step 4: Simplify right side
    1,200.48x = 602,795.64
  5. Step 5: Solve for x
    x = 602,795.64/1,200.48
  6. Step 6: Final answer
    x = 502.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.