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Finding the Fourth Proportional to 397,451.80, 595,302.90 and 239,404.60

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Solution

The fourth proportional to 397,451.80, 595,302.90 and 239,404.60 is: 358,579.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,451.80 : 595,302.90 = 239,404.60 : x
  2. Step 2: Convert to fraction form
    397,451.80/595,302.90 = 239,404.60/x
  3. Step 3: Cross multiply
    397,451.80x = 595,302.90 × 239,404.60
  4. Step 4: Simplify right side
    397,451.80x = 142,518,252,653.34
  5. Step 5: Solve for x
    x = 142,518,252,653.34/397,451.80
  6. Step 6: Final answer
    x = 358,579.97

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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.