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Finding the Fourth Proportional to 290,783.70, 436,175.55 and 150,585.30

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Solution

The fourth proportional to 290,783.70, 436,175.55 and 150,585.30 is: 225,877.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,783.70 : 436,175.55 = 150,585.30 : x
  2. Step 2: Convert to fraction form
    290,783.70/436,175.55 = 150,585.30/x
  3. Step 3: Cross multiply
    290,783.70x = 436,175.55 × 150,585.30
  4. Step 4: Simplify right side
    290,783.70x = 65,681,626,049.42
  5. Step 5: Solve for x
    x = 65,681,626,049.42/290,783.70
  6. Step 6: Final answer
    x = 225,877.95

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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.