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Finding the Fourth Proportional to 245,846.64, 368,798.51 and 85,873.06

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Solution

The fourth proportional to 245,846.64, 368,798.51 and 85,873.06 is: 128,819.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,846.64 : 368,798.51 = 85,873.06 : x
  2. Step 2: Convert to fraction form
    245,846.64/368,798.51 = 85,873.06/x
  3. Step 3: Cross multiply
    245,846.64x = 368,798.51 × 85,873.06
  4. Step 4: Simplify right side
    245,846.64x = 31,669,856,577.14
  5. Step 5: Solve for x
    x = 31,669,856,577.14/245,846.64
  6. Step 6: Final answer
    x = 128,819.56

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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.