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Finding the Fourth Proportional to 492,512.80, 738,883.32 and 155,586.88

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Solution

The fourth proportional to 492,512.80, 738,883.32 and 155,586.88 is: 233,416.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,512.80 : 738,883.32 = 155,586.88 : x
  2. Step 2: Convert to fraction form
    492,512.80/738,883.32 = 155,586.88/x
  3. Step 3: Cross multiply
    492,512.80x = 738,883.32 × 155,586.88
  4. Step 4: Simplify right side
    492,512.80x = 114,960,550,442.84
  5. Step 5: Solve for x
    x = 114,960,550,442.84/492,512.80
  6. Step 6: Final answer
    x = 233,416.37

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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.