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Finding the Fourth Proportional to 297,829.60, 446,701.20 and 87,445.60

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Solution

The fourth proportional to 297,829.60, 446,701.20 and 87,445.60 is: 131,155.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,829.60 : 446,701.20 = 87,445.60 : x
  2. Step 2: Convert to fraction form
    297,829.60/446,701.20 = 87,445.60/x
  3. Step 3: Cross multiply
    297,829.60x = 446,701.20 × 87,445.60
  4. Step 4: Simplify right side
    297,829.60x = 39,062,054,454.72
  5. Step 5: Solve for x
    x = 39,062,054,454.72/297,829.60
  6. Step 6: Final answer
    x = 131,155.72

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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.