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Finding the Fourth Proportional to 303,621.80, 455,141.10 and 236,116.40

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Solution

The fourth proportional to 303,621.80, 455,141.10 and 236,116.40 is: 353,947.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,621.80 : 455,141.10 = 236,116.40 : x
  2. Step 2: Convert to fraction form
    303,621.80/455,141.10 = 236,116.40/x
  3. Step 3: Cross multiply
    303,621.80x = 455,141.10 × 236,116.40
  4. Step 4: Simplify right side
    303,621.80x = 107,466,278,024.04
  5. Step 5: Solve for x
    x = 107,466,278,024.04/303,621.80
  6. Step 6: Final answer
    x = 353,947.83

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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.