Home / 307,338.32-423,968.74-205,331.16

Finding the Fourth Proportional to 307,338.32, 423,968.74 and 205,331.16

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Solution

The fourth proportional to 307,338.32, 423,968.74 and 205,331.16 is: 283,251.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,338.32 : 423,968.74 = 205,331.16 : x
  2. Step 2: Convert to fraction form
    307,338.32/423,968.74 = 205,331.16/x
  3. Step 3: Cross multiply
    307,338.32x = 423,968.74 × 205,331.16
  4. Step 4: Simplify right side
    307,338.32x = 87,053,993,187.94
  5. Step 5: Solve for x
    x = 87,053,993,187.94/307,338.32
  6. Step 6: Final answer
    x = 283,251.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.