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Finding the Fourth Proportional to 665,244.80, 997,672.80 and 238,731.20

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Solution

The fourth proportional to 665,244.80, 997,672.80 and 238,731.20 is: 358,027.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,244.80 : 997,672.80 = 238,731.20 : x
  2. Step 2: Convert to fraction form
    665,244.80/997,672.80 = 238,731.20/x
  3. Step 3: Cross multiply
    665,244.80x = 997,672.80 × 238,731.20
  4. Step 4: Simplify right side
    665,244.80x = 238,175,624,751.36
  5. Step 5: Solve for x
    x = 238,175,624,751.36/665,244.80
  6. Step 6: Final answer
    x = 358,027.04

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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.