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Finding the Fourth Proportional to 288,695.70, 433,043.55 and 200,049.30

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Solution

The fourth proportional to 288,695.70, 433,043.55 and 200,049.30 is: 300,073.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,695.70 : 433,043.55 = 200,049.30 : x
  2. Step 2: Convert to fraction form
    288,695.70/433,043.55 = 200,049.30/x
  3. Step 3: Cross multiply
    288,695.70x = 433,043.55 × 200,049.30
  4. Step 4: Simplify right side
    288,695.70x = 86,630,059,047.02
  5. Step 5: Solve for x
    x = 86,630,059,047.02/288,695.70
  6. Step 6: Final answer
    x = 300,073.95

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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.