Home / 208,439.84-312,659.94-146,387.36

Finding the Fourth Proportional to 208,439.84, 312,659.94 and 146,387.36

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Solution

The fourth proportional to 208,439.84, 312,659.94 and 146,387.36 is: 219,581.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,439.84 : 312,659.94 = 146,387.36 : x
  2. Step 2: Convert to fraction form
    208,439.84/312,659.94 = 146,387.36/x
  3. Step 3: Cross multiply
    208,439.84x = 312,659.94 × 146,387.36
  4. Step 4: Simplify right side
    208,439.84x = 45,769,463,194.36
  5. Step 5: Solve for x
    x = 45,769,463,194.36/208,439.84
  6. Step 6: Final answer
    x = 219,581.17

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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.