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Finding the Fourth Proportional to 309,616.40, 464,424.60 and 309,616.40

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Solution

The fourth proportional to 309,616.40, 464,424.60 and 309,616.40 is: 464,424.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,616.40 : 464,424.60 = 309,616.40 : x
  2. Step 2: Convert to fraction form
    309,616.40/464,424.60 = 309,616.40/x
  3. Step 3: Cross multiply
    309,616.40x = 464,424.60 × 309,616.40
  4. Step 4: Simplify right side
    309,616.40x = 143,793,472,723.44
  5. Step 5: Solve for x
    x = 143,793,472,723.44/309,616.40
  6. Step 6: Final answer
    x = 464,424.60

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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.