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Finding the Fourth Proportional to 297,874.40, 446,890.80 and 129,322.40

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Solution

The fourth proportional to 297,874.40, 446,890.80 and 129,322.40 is: 194,017.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,874.40 : 446,890.80 = 129,322.40 : x
  2. Step 2: Convert to fraction form
    297,874.40/446,890.80 = 129,322.40/x
  3. Step 3: Cross multiply
    297,874.40x = 446,890.80 × 129,322.40
  4. Step 4: Simplify right side
    297,874.40x = 57,792,990,793.92
  5. Step 5: Solve for x
    x = 57,792,990,793.92/297,874.40
  6. Step 6: Final answer
    x = 194,017.98

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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.