Home / 386,532.51-533,440.09-223,195.90

Finding the Fourth Proportional to 386,532.51, 533,440.09 and 223,195.90

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Solution

The fourth proportional to 386,532.51, 533,440.09 and 223,195.90 is: 308,024.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,532.51 : 533,440.09 = 223,195.90 : x
  2. Step 2: Convert to fraction form
    386,532.51/533,440.09 = 223,195.90/x
  3. Step 3: Cross multiply
    386,532.51x = 533,440.09 × 223,195.90
  4. Step 4: Simplify right side
    386,532.51x = 119,061,639,867.65
  5. Step 5: Solve for x
    x = 119,061,639,867.65/386,532.51
  6. Step 6: Final answer
    x = 308,024.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.