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Finding the Fourth Proportional to 321,969.60, 482,954.40 and 291,902.40

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Solution

The fourth proportional to 321,969.60, 482,954.40 and 291,902.40 is: 437,853.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,969.60 : 482,954.40 = 291,902.40 : x
  2. Step 2: Convert to fraction form
    321,969.60/482,954.40 = 291,902.40/x
  3. Step 3: Cross multiply
    321,969.60x = 482,954.40 × 291,902.40
  4. Step 4: Simplify right side
    321,969.60x = 140,975,548,450.56
  5. Step 5: Solve for x
    x = 140,975,548,450.56/321,969.60
  6. Step 6: Final answer
    x = 437,853.60

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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.