Home / 290,522.32-435,808.61-80,160.24

Finding the Fourth Proportional to 290,522.32, 435,808.61 and 80,160.24

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Solution

The fourth proportional to 290,522.32, 435,808.61 and 80,160.24 is: 120,247.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,522.32 : 435,808.61 = 80,160.24 : x
  2. Step 2: Convert to fraction form
    290,522.32/435,808.61 = 80,160.24/x
  3. Step 3: Cross multiply
    290,522.32x = 435,808.61 × 80,160.24
  4. Step 4: Simplify right side
    290,522.32x = 34,934,522,771.67
  5. Step 5: Solve for x
    x = 34,934,522,771.67/290,522.32
  6. Step 6: Final answer
    x = 120,247.29

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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.