Home / 315,869.22-435,920.61-178,082.16

Finding the Fourth Proportional to 315,869.22, 435,920.61 and 178,082.16

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Solution

The fourth proportional to 315,869.22, 435,920.61 and 178,082.16 is: 245,765.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,869.22 : 435,920.61 = 178,082.16 : x
  2. Step 2: Convert to fraction form
    315,869.22/435,920.61 = 178,082.16/x
  3. Step 3: Cross multiply
    315,869.22x = 435,920.61 × 178,082.16
  4. Step 4: Simplify right side
    315,869.22x = 77,629,683,817.32
  5. Step 5: Solve for x
    x = 77,629,683,817.32/315,869.22
  6. Step 6: Final answer
    x = 245,765.27

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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.