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Finding the Fourth Proportional to 665,368.92, 997,388.28 and 238,788.84

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Solution

The fourth proportional to 665,368.92, 997,388.28 and 238,788.84 is: 357,944.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,368.92 : 997,388.28 = 238,788.84 : x
  2. Step 2: Convert to fraction form
    665,368.92/997,388.28 = 238,788.84/x
  3. Step 3: Cross multiply
    665,368.92x = 997,388.28 × 238,788.84
  4. Step 4: Simplify right side
    665,368.92x = 238,165,190,410.80
  5. Step 5: Solve for x
    x = 238,165,190,410.80/665,368.92
  6. Step 6: Final answer
    x = 357,944.57

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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.