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Finding the Fourth Proportional to 310,067.64, 427,887.90 and 174,102.66

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Solution

The fourth proportional to 310,067.64, 427,887.90 and 174,102.66 is: 240,258.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,067.64 : 427,887.90 = 174,102.66 : x
  2. Step 2: Convert to fraction form
    310,067.64/427,887.90 = 174,102.66/x
  3. Step 3: Cross multiply
    310,067.64x = 427,887.90 × 174,102.66
  4. Step 4: Simplify right side
    310,067.64x = 74,496,421,571.81
  5. Step 5: Solve for x
    x = 74,496,421,571.81/310,067.64
  6. Step 6: Final answer
    x = 240,258.61

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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.