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Finding the Fourth Proportional to 478,709.82, 718,082.96 and 179,158.86

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Solution

The fourth proportional to 478,709.82, 718,082.96 and 179,158.86 is: 268,745.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,709.82 : 718,082.96 = 179,158.86 : x
  2. Step 2: Convert to fraction form
    478,709.82/718,082.96 = 179,158.86/x
  3. Step 3: Cross multiply
    478,709.82x = 718,082.96 × 179,158.86
  4. Step 4: Simplify right side
    478,709.82x = 128,650,923,603.23
  5. Step 5: Solve for x
    x = 128,650,923,603.23/478,709.82
  6. Step 6: Final answer
    x = 268,745.11

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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.