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Finding the Fourth Proportional to 290,622.60, 435,933.90 and 248,632.20

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Solution

The fourth proportional to 290,622.60, 435,933.90 and 248,632.20 is: 372,948.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,622.60 : 435,933.90 = 248,632.20 : x
  2. Step 2: Convert to fraction form
    290,622.60/435,933.90 = 248,632.20/x
  3. Step 3: Cross multiply
    290,622.60x = 435,933.90 × 248,632.20
  4. Step 4: Simplify right side
    290,622.60x = 108,387,204,611.58
  5. Step 5: Solve for x
    x = 108,387,204,611.58/290,622.60
  6. Step 6: Final answer
    x = 372,948.30

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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.