Home / 371,569.62-557,178.66-143,971.74

Finding the Fourth Proportional to 371,569.62, 557,178.66 and 143,971.74

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Solution

The fourth proportional to 371,569.62, 557,178.66 and 143,971.74 is: 215,889.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,569.62 : 557,178.66 = 143,971.74 : x
  2. Step 2: Convert to fraction form
    371,569.62/557,178.66 = 143,971.74/x
  3. Step 3: Cross multiply
    371,569.62x = 557,178.66 × 143,971.74
  4. Step 4: Simplify right side
    371,569.62x = 80,217,981,171.07
  5. Step 5: Solve for x
    x = 80,217,981,171.07/371,569.62
  6. Step 6: Final answer
    x = 215,889.50

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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.