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Finding the Fourth Proportional to 302,853.60, 454,280.40 and 103,399.20

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Solution

The fourth proportional to 302,853.60, 454,280.40 and 103,399.20 is: 155,098.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,853.60 : 454,280.40 = 103,399.20 : x
  2. Step 2: Convert to fraction form
    302,853.60/454,280.40 = 103,399.20/x
  3. Step 3: Cross multiply
    302,853.60x = 454,280.40 × 103,399.20
  4. Step 4: Simplify right side
    302,853.60x = 46,972,229,935.68
  5. Step 5: Solve for x
    x = 46,972,229,935.68/302,853.60
  6. Step 6: Final answer
    x = 155,098.80

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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.