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Finding the Fourth Proportional to 297,953.64, 446,679 and 129,346.74

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Solution

The fourth proportional to 297,953.64, 446,679 and 129,346.74 is: 193,910.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,953.64 : 446,679 = 129,346.74 : x
  2. Step 2: Convert to fraction form
    297,953.64/446,679 = 129,346.74/x
  3. Step 3: Cross multiply
    297,953.64x = 446,679 × 129,346.74
  4. Step 4: Simplify right side
    297,953.64x = 57,776,472,476.46
  5. Step 5: Solve for x
    x = 57,776,472,476.46/297,953.64
  6. Step 6: Final answer
    x = 193,910.95

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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.