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Finding the Fourth Proportional to 302,979.40, 454,469.10 and 243,930.40

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Solution

The fourth proportional to 302,979.40, 454,469.10 and 243,930.40 is: 365,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,979.40 : 454,469.10 = 243,930.40 : x
  2. Step 2: Convert to fraction form
    302,979.40/454,469.10 = 243,930.40/x
  3. Step 3: Cross multiply
    302,979.40x = 454,469.10 × 243,930.40
  4. Step 4: Simplify right side
    302,979.40x = 110,858,829,350.64
  5. Step 5: Solve for x
    x = 110,858,829,350.64/302,979.40
  6. Step 6: Final answer
    x = 365,895.60

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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.