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Finding the Fourth Proportional to 302,813.61, 454,290.69 and 103,135.73

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Solution

The fourth proportional to 302,813.61, 454,290.69 and 103,135.73 is: 154,727.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,813.61 : 454,290.69 = 103,135.73 : x
  2. Step 2: Convert to fraction form
    302,813.61/454,290.69 = 103,135.73/x
  3. Step 3: Cross multiply
    302,813.61x = 454,290.69 × 103,135.73
  4. Step 4: Simplify right side
    302,813.61x = 46,853,601,945.35
  5. Step 5: Solve for x
    x = 46,853,601,945.35/302,813.61
  6. Step 6: Final answer
    x = 154,727.53

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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.