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Finding the Fourth Proportional to 665,500.56, 998,141.44 and 238,948.08

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Solution

The fourth proportional to 665,500.56, 998,141.44 and 238,948.08 is: 358,382.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,500.56 : 998,141.44 = 238,948.08 : x
  2. Step 2: Convert to fraction form
    665,500.56/998,141.44 = 238,948.08/x
  3. Step 3: Cross multiply
    665,500.56x = 998,141.44 × 238,948.08
  4. Step 4: Simplify right side
    665,500.56x = 238,503,980,656.44
  5. Step 5: Solve for x
    x = 238,503,980,656.44/665,500.56
  6. Step 6: Final answer
    x = 358,382.84

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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.