Home / 379,382.48-523,542.60-209,614.16

Finding the Fourth Proportional to 379,382.48, 523,542.60 and 209,614.16

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Solution

The fourth proportional to 379,382.48, 523,542.60 and 209,614.16 is: 289,264.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,382.48 : 523,542.60 = 209,614.16 : x
  2. Step 2: Convert to fraction form
    379,382.48/523,542.60 = 209,614.16/x
  3. Step 3: Cross multiply
    379,382.48x = 523,542.60 × 209,614.16
  4. Step 4: Simplify right side
    379,382.48x = 109,741,942,323.22
  5. Step 5: Solve for x
    x = 109,741,942,323.22/379,382.48
  6. Step 6: Final answer
    x = 289,264.66

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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.