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Finding the Fourth Proportional to 300,616.08, 450,943.56 and 100,928.40

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Solution

The fourth proportional to 300,616.08, 450,943.56 and 100,928.40 is: 151,399.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,616.08 : 450,943.56 = 100,928.40 : x
  2. Step 2: Convert to fraction form
    300,616.08/450,943.56 = 100,928.40/x
  3. Step 3: Cross multiply
    300,616.08x = 450,943.56 × 100,928.40
  4. Step 4: Simplify right side
    300,616.08x = 45,513,012,001.10
  5. Step 5: Solve for x
    x = 45,513,012,001.10/300,616.08
  6. Step 6: Final answer
    x = 151,399.13

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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.