Home / 455,082.28-682,597.90-139,538.32

Finding the Fourth Proportional to 455,082.28, 682,597.90 and 139,538.32

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Solution

The fourth proportional to 455,082.28, 682,597.90 and 139,538.32 is: 209,299.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,082.28 : 682,597.90 = 139,538.32 : x
  2. Step 2: Convert to fraction form
    455,082.28/682,597.90 = 139,538.32/x
  3. Step 3: Cross multiply
    455,082.28x = 682,597.90 × 139,538.32
  4. Step 4: Simplify right side
    455,082.28x = 95,248,564,201.53
  5. Step 5: Solve for x
    x = 95,248,564,201.53/455,082.28
  6. Step 6: Final answer
    x = 209,299.66

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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.