Home / 305,345.23-457,796.40-205,257.17

Finding the Fourth Proportional to 305,345.23, 457,796.40 and 205,257.17

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Solution

The fourth proportional to 305,345.23, 457,796.40 and 205,257.17 is: 307,736.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,345.23 : 457,796.40 = 205,257.17 : x
  2. Step 2: Convert to fraction form
    305,345.23/457,796.40 = 205,257.17/x
  3. Step 3: Cross multiply
    305,345.23x = 457,796.40 × 205,257.17
  4. Step 4: Simplify right side
    305,345.23x = 93,965,993,500.19
  5. Step 5: Solve for x
    x = 93,965,993,500.19/305,345.23
  6. Step 6: Final answer
    x = 307,736.90

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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.