Home / 313,318.17-469,921.69-142,499.87

Finding the Fourth Proportional to 313,318.17, 469,921.69 and 142,499.87

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Solution

The fourth proportional to 313,318.17, 469,921.69 and 142,499.87 is: 213,724.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,318.17 : 469,921.69 = 142,499.87 : x
  2. Step 2: Convert to fraction form
    313,318.17/469,921.69 = 142,499.87/x
  3. Step 3: Cross multiply
    313,318.17x = 469,921.69 × 142,499.87
  4. Step 4: Simplify right side
    313,318.17x = 66,963,777,029.32
  5. Step 5: Solve for x
    x = 66,963,777,029.32/313,318.17
  6. Step 6: Final answer
    x = 213,724.52

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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.