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Finding the Fourth Proportional to 375,662.36, 518,439.29 and 212,262.25

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Solution

The fourth proportional to 375,662.36, 518,439.29 and 212,262.25 is: 292,936.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,662.36 : 518,439.29 = 212,262.25 : x
  2. Step 2: Convert to fraction form
    375,662.36/518,439.29 = 212,262.25/x
  3. Step 3: Cross multiply
    375,662.36x = 518,439.29 × 212,262.25
  4. Step 4: Simplify right side
    375,662.36x = 110,045,087,340.36
  5. Step 5: Solve for x
    x = 110,045,087,340.36/375,662.36
  6. Step 6: Final answer
    x = 292,936.16

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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.