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Finding the Fourth Proportional to 630,144.52, 944,909.80 and 209,278.24

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Solution

The fourth proportional to 630,144.52, 944,909.80 and 209,278.24 is: 313,815.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,144.52 : 944,909.80 = 209,278.24 : x
  2. Step 2: Convert to fraction form
    630,144.52/944,909.80 = 209,278.24/x
  3. Step 3: Cross multiply
    630,144.52x = 944,909.80 × 209,278.24
  4. Step 4: Simplify right side
    630,144.52x = 197,749,059,902.75
  5. Step 5: Solve for x
    x = 197,749,059,902.75/630,144.52
  6. Step 6: Final answer
    x = 313,815.41

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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.