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Finding the Fourth Proportional to 302,857.60, 454,286.40 and 145,004.80

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Solution

The fourth proportional to 302,857.60, 454,286.40 and 145,004.80 is: 217,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,857.60 : 454,286.40 = 145,004.80 : x
  2. Step 2: Convert to fraction form
    302,857.60/454,286.40 = 145,004.80/x
  3. Step 3: Cross multiply
    302,857.60x = 454,286.40 × 145,004.80
  4. Step 4: Simplify right side
    302,857.60x = 65,873,708,574.72
  5. Step 5: Solve for x
    x = 65,873,708,574.72/302,857.60
  6. Step 6: Final answer
    x = 217,507.20

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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.