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Finding the Fourth Proportional to 297,515.76, 446,277.30 and 87,157.98

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Solution

The fourth proportional to 297,515.76, 446,277.30 and 87,157.98 is: 130,738.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,515.76 : 446,277.30 = 87,157.98 : x
  2. Step 2: Convert to fraction form
    297,515.76/446,277.30 = 87,157.98/x
  3. Step 3: Cross multiply
    297,515.76x = 446,277.30 × 87,157.98
  4. Step 4: Simplify right side
    297,515.76x = 38,896,627,987.85
  5. Step 5: Solve for x
    x = 38,896,627,987.85/297,515.76
  6. Step 6: Final answer
    x = 130,738.04

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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.