Home / 228,082.08-342,164.22-78,283.68

Finding the Fourth Proportional to 228,082.08, 342,164.22 and 78,283.68

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Solution

The fourth proportional to 228,082.08, 342,164.22 and 78,283.68 is: 117,439.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,082.08 : 342,164.22 = 78,283.68 : x
  2. Step 2: Convert to fraction form
    228,082.08/342,164.22 = 78,283.68/x
  3. Step 3: Cross multiply
    228,082.08x = 342,164.22 × 78,283.68
  4. Step 4: Simplify right side
    228,082.08x = 26,785,874,305.93
  5. Step 5: Solve for x
    x = 26,785,874,305.93/228,082.08
  6. Step 6: Final answer
    x = 117,439.63

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1.5x scale

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.