Home / 666,838.91-1,000,223.07-187,100.12

Finding the Fourth Proportional to 666,838.91, 1,000,223.07 and 187,100.12

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Solution

The fourth proportional to 666,838.91, 1,000,223.07 and 187,100.12 is: 280,640.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,838.91 : 1,000,223.07 = 187,100.12 : x
  2. Step 2: Convert to fraction form
    666,838.91/1,000,223.07 = 187,100.12/x
  3. Step 3: Cross multiply
    666,838.91x = 1,000,223.07 × 187,100.12
  4. Step 4: Simplify right side
    666,838.91x = 187,141,851,422.65
  5. Step 5: Solve for x
    x = 187,141,851,422.65/666,838.91
  6. Step 6: Final answer
    x = 280,640.27

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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.