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Finding the Fourth Proportional to 425,147.60, 637,876.77 and 197,548.34

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Solution

The fourth proportional to 425,147.60, 637,876.77 and 197,548.34 is: 296,394.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,147.60 : 637,876.77 = 197,548.34 : x
  2. Step 2: Convert to fraction form
    425,147.60/637,876.77 = 197,548.34/x
  3. Step 3: Cross multiply
    425,147.60x = 637,876.77 × 197,548.34
  4. Step 4: Simplify right side
    425,147.60x = 126,011,493,848.68
  5. Step 5: Solve for x
    x = 126,011,493,848.68/425,147.60
  6. Step 6: Final answer
    x = 296,394.70

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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.