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Finding the Fourth Proportional to 368,305.37, 508,266.66 and 217,402.37

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Solution

The fourth proportional to 368,305.37, 508,266.66 and 217,402.37 is: 300,018.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,305.37 : 508,266.66 = 217,402.37 : x
  2. Step 2: Convert to fraction form
    368,305.37/508,266.66 = 217,402.37/x
  3. Step 3: Cross multiply
    368,305.37x = 508,266.66 × 217,402.37
  4. Step 4: Simplify right side
    368,305.37x = 110,498,372,847.64
  5. Step 5: Solve for x
    x = 110,498,372,847.64/368,305.37
  6. Step 6: Final answer
    x = 300,018.36

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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.