Home / 486,284.70-729,081.45-220,172.70

Finding the Fourth Proportional to 486,284.70, 729,081.45 and 220,172.70

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Solution

The fourth proportional to 486,284.70, 729,081.45 and 220,172.70 is: 330,102.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,284.70 : 729,081.45 = 220,172.70 : x
  2. Step 2: Convert to fraction form
    486,284.70/729,081.45 = 220,172.70/x
  3. Step 3: Cross multiply
    486,284.70x = 729,081.45 × 220,172.70
  4. Step 4: Simplify right side
    486,284.70x = 160,523,831,366.42
  5. Step 5: Solve for x
    x = 160,523,831,366.42/486,284.70
  6. Step 6: Final answer
    x = 330,102.57

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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.