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Finding the Fourth Proportional to 353,793.40, 487,404.30 and 246,178.60

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Solution

The fourth proportional to 353,793.40, 487,404.30 and 246,178.60 is: 339,148.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,793.40 : 487,404.30 = 246,178.60 : x
  2. Step 2: Convert to fraction form
    353,793.40/487,404.30 = 246,178.60/x
  3. Step 3: Cross multiply
    353,793.40x = 487,404.30 × 246,178.60
  4. Step 4: Simplify right side
    353,793.40x = 119,988,508,207.98
  5. Step 5: Solve for x
    x = 119,988,508,207.98/353,793.40
  6. Step 6: Final answer
    x = 339,148.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.