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Finding the Fourth Proportional to 290,522.82, 435,809.37 and 80,160.74

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Solution

The fourth proportional to 290,522.82, 435,809.37 and 80,160.74 is: 120,248.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,522.82 : 435,809.37 = 80,160.74 : x
  2. Step 2: Convert to fraction form
    290,522.82/435,809.37 = 80,160.74/x
  3. Step 3: Cross multiply
    290,522.82x = 435,809.37 × 80,160.74
  4. Step 4: Simplify right side
    290,522.82x = 34,934,799,419.09
  5. Step 5: Solve for x
    x = 34,934,799,419.09/290,522.82
  6. Step 6: Final answer
    x = 120,248.04

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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.