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Finding the Fourth Proportional to 665,012.16, 997,915.68 and 244,330.56

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Solution

The fourth proportional to 665,012.16, 997,915.68 and 244,330.56 is: 366,641.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,012.16 : 997,915.68 = 244,330.56 : x
  2. Step 2: Convert to fraction form
    665,012.16/997,915.68 = 244,330.56/x
  3. Step 3: Cross multiply
    665,012.16x = 997,915.68 × 244,330.56
  4. Step 4: Simplify right side
    665,012.16x = 243,821,296,927.18
  5. Step 5: Solve for x
    x = 243,821,296,927.18/665,012.16
  6. Step 6: Final answer
    x = 366,641.86

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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.