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Finding the Fourth Proportional to 302,940.60, 454,410.90 and 218,522.40

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Solution

The fourth proportional to 302,940.60, 454,410.90 and 218,522.40 is: 327,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,940.60 : 454,410.90 = 218,522.40 : x
  2. Step 2: Convert to fraction form
    302,940.60/454,410.90 = 218,522.40/x
  3. Step 3: Cross multiply
    302,940.60x = 454,410.90 × 218,522.40
  4. Step 4: Simplify right side
    302,940.60x = 99,298,960,454.16
  5. Step 5: Solve for x
    x = 99,298,960,454.16/302,940.60
  6. Step 6: Final answer
    x = 327,783.60

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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.