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Finding the Fourth Proportional to 288,773.75, 398,347.78 and 167,901.67

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Solution

The fourth proportional to 288,773.75, 398,347.78 and 167,901.67 is: 231,611.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,773.75 : 398,347.78 = 167,901.67 : x
  2. Step 2: Convert to fraction form
    288,773.75/398,347.78 = 167,901.67/x
  3. Step 3: Cross multiply
    288,773.75x = 398,347.78 × 167,901.67
  4. Step 4: Simplify right side
    288,773.75x = 66,883,256,087.17
  5. Step 5: Solve for x
    x = 66,883,256,087.17/288,773.75
  6. Step 6: Final answer
    x = 231,611.28

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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.