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Finding the Fourth Proportional to 245,134.64, 367,748.32 and 85,204.56

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Solution

The fourth proportional to 245,134.64, 367,748.32 and 85,204.56 is: 127,822.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,134.64 : 367,748.32 = 85,204.56 : x
  2. Step 2: Convert to fraction form
    245,134.64/367,748.32 = 85,204.56/x
  3. Step 3: Cross multiply
    245,134.64x = 367,748.32 × 85,204.56
  4. Step 4: Simplify right side
    245,134.64x = 31,333,833,796.34
  5. Step 5: Solve for x
    x = 31,333,833,796.34/245,134.64
  6. Step 6: Final answer
    x = 127,822.95

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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.