Home / 1,118.04-1,677.35-338.03

Finding the Fourth Proportional to 1,118.04, 1,677.35 and 338.03

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Solution

The fourth proportional to 1,118.04, 1,677.35 and 338.03 is: 507.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118.04 : 1,677.35 = 338.03 : x
  2. Step 2: Convert to fraction form
    1,118.04/1,677.35 = 338.03/x
  3. Step 3: Cross multiply
    1,118.04x = 1,677.35 × 338.03
  4. Step 4: Simplify right side
    1,118.04x = 566,994.62
  5. Step 5: Solve for x
    x = 566,994.62/1,118.04
  6. Step 6: Final answer
    x = 507.13

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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.