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Finding the Fourth Proportional to 297,187.57, 445,779.79 and 72,549.19

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Solution

The fourth proportional to 297,187.57, 445,779.79 and 72,549.19 is: 108,823.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,187.57 : 445,779.79 = 72,549.19 : x
  2. Step 2: Convert to fraction form
    297,187.57/445,779.79 = 72,549.19/x
  3. Step 3: Cross multiply
    297,187.57x = 445,779.79 × 72,549.19
  4. Step 4: Simplify right side
    297,187.57x = 32,340,962,682.87
  5. Step 5: Solve for x
    x = 32,340,962,682.87/297,187.57
  6. Step 6: Final answer
    x = 108,823.40

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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.