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Finding the Fourth Proportional to 290,310.60, 435,353.58 and 112,794.24

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Solution

The fourth proportional to 290,310.60, 435,353.58 and 112,794.24 is: 169,147.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,310.60 : 435,353.58 = 112,794.24 : x
  2. Step 2: Convert to fraction form
    290,310.60/435,353.58 = 112,794.24/x
  3. Step 3: Cross multiply
    290,310.60x = 435,353.58 × 112,794.24
  4. Step 4: Simplify right side
    290,310.60x = 49,105,376,187.38
  5. Step 5: Solve for x
    x = 49,105,376,187.38/290,310.60
  6. Step 6: Final answer
    x = 169,147.72

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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.