Home / 309,723.96-464,629.14-99,426.36

Finding the Fourth Proportional to 309,723.96, 464,629.14 and 99,426.36

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Solution

The fourth proportional to 309,723.96, 464,629.14 and 99,426.36 is: 149,153.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,723.96 : 464,629.14 = 99,426.36 : x
  2. Step 2: Convert to fraction form
    309,723.96/464,629.14 = 99,426.36/x
  3. Step 3: Cross multiply
    309,723.96x = 464,629.14 × 99,426.36
  4. Step 4: Simplify right side
    309,723.96x = 46,196,384,140.13
  5. Step 5: Solve for x
    x = 46,196,384,140.13/309,723.96
  6. Step 6: Final answer
    x = 149,153.41

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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.