Home / 1,269.02-1,903.30-344.45

Finding the Fourth Proportional to 1,269.02, 1,903.30 and 344.45

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Solution

The fourth proportional to 1,269.02, 1,903.30 and 344.45 is: 516.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269.02 : 1,903.30 = 344.45 : x
  2. Step 2: Convert to fraction form
    1,269.02/1,903.30 = 344.45/x
  3. Step 3: Cross multiply
    1,269.02x = 1,903.30 × 344.45
  4. Step 4: Simplify right side
    1,269.02x = 655,595.58
  5. Step 5: Solve for x
    x = 655,595.58/1,269.02
  6. Step 6: Final answer
    x = 516.62

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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.