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Finding the Fourth Proportional to 492,801.60, 739,202.40 and 212,635.20

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Solution

The fourth proportional to 492,801.60, 739,202.40 and 212,635.20 is: 318,952.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,801.60 : 739,202.40 = 212,635.20 : x
  2. Step 2: Convert to fraction form
    492,801.60/739,202.40 = 212,635.20/x
  3. Step 3: Cross multiply
    492,801.60x = 739,202.40 × 212,635.20
  4. Step 4: Simplify right side
    492,801.60x = 157,180,450,164.48
  5. Step 5: Solve for x
    x = 157,180,450,164.48/492,801.60
  6. Step 6: Final answer
    x = 318,952.80

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1.5x scale

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.