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Finding the Fourth Proportional to 357,654.72, 536,398.85 and 133,120.90

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Solution

The fourth proportional to 357,654.72, 536,398.85 and 133,120.90 is: 199,650.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,654.72 : 536,398.85 = 133,120.90 : x
  2. Step 2: Convert to fraction form
    357,654.72/536,398.85 = 133,120.90/x
  3. Step 3: Cross multiply
    357,654.72x = 536,398.85 × 133,120.90
  4. Step 4: Simplify right side
    357,654.72x = 71,405,896,662.77
  5. Step 5: Solve for x
    x = 71,405,896,662.77/357,654.72
  6. Step 6: Final answer
    x = 199,650.37

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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.