Home / 289,184.20-433,776.30-131,720.20

Finding the Fourth Proportional to 289,184.20, 433,776.30 and 131,720.20

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Solution

The fourth proportional to 289,184.20, 433,776.30 and 131,720.20 is: 197,580.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,184.20 : 433,776.30 = 131,720.20 : x
  2. Step 2: Convert to fraction form
    289,184.20/433,776.30 = 131,720.20/x
  3. Step 3: Cross multiply
    289,184.20x = 433,776.30 × 131,720.20
  4. Step 4: Simplify right side
    289,184.20x = 57,137,100,991.26
  5. Step 5: Solve for x
    x = 57,137,100,991.26/289,184.20
  6. Step 6: Final answer
    x = 197,580.30

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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.