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Finding the Fourth Proportional to 486,258.37, 729,330.13 and 131,300.08

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Solution

The fourth proportional to 486,258.37, 729,330.13 and 131,300.08 is: 196,934.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,258.37 : 729,330.13 = 131,300.08 : x
  2. Step 2: Convert to fraction form
    486,258.37/729,330.13 = 131,300.08/x
  3. Step 3: Cross multiply
    486,258.37x = 729,330.13 × 131,300.08
  4. Step 4: Simplify right side
    486,258.37x = 95,761,104,415.41
  5. Step 5: Solve for x
    x = 95,761,104,415.41/486,258.37
  6. Step 6: Final answer
    x = 196,934.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.