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Finding the Fourth Proportional to 375,718.10, 518,512.19 and 222,846.80

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Solution

The fourth proportional to 375,718.10, 518,512.19 and 222,846.80 is: 307,541.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,718.10 : 518,512.19 = 222,846.80 : x
  2. Step 2: Convert to fraction form
    375,718.10/518,512.19 = 222,846.80/x
  3. Step 3: Cross multiply
    375,718.10x = 518,512.19 × 222,846.80
  4. Step 4: Simplify right side
    375,718.10x = 115,548,778,595.70
  5. Step 5: Solve for x
    x = 115,548,778,595.70/375,718.10
  6. Step 6: Final answer
    x = 307,541.16

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1.5x scale

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.