Home / 379,382.16-523,541.16-209,623.44

Finding the Fourth Proportional to 379,382.16, 523,541.16 and 209,623.44

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Solution

The fourth proportional to 379,382.16, 523,541.16 and 209,623.44 is: 289,276.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,382.16 : 523,541.16 = 209,623.44 : x
  2. Step 2: Convert to fraction form
    379,382.16/523,541.16 = 209,623.44/x
  3. Step 3: Cross multiply
    379,382.16x = 523,541.16 × 209,623.44
  4. Step 4: Simplify right side
    379,382.16x = 109,746,498,940.79
  5. Step 5: Solve for x
    x = 109,746,498,940.79/379,382.16
  6. Step 6: Final answer
    x = 289,276.91

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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.