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Finding the Fourth Proportional to 297,751.20, 446,626.80 and 87,410.40

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Solution

The fourth proportional to 297,751.20, 446,626.80 and 87,410.40 is: 131,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,751.20 : 446,626.80 = 87,410.40 : x
  2. Step 2: Convert to fraction form
    297,751.20/446,626.80 = 87,410.40/x
  3. Step 3: Cross multiply
    297,751.20x = 446,626.80 × 87,410.40
  4. Step 4: Simplify right side
    297,751.20x = 39,039,827,238.72
  5. Step 5: Solve for x
    x = 39,039,827,238.72/297,751.20
  6. Step 6: Final answer
    x = 131,115.60

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1.5x scale

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.