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Finding the Fourth Proportional to 355,902.67, 533,900.99 and 131,420.89

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Solution

The fourth proportional to 355,902.67, 533,900.99 and 131,420.89 is: 197,148.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,902.67 : 533,900.99 = 131,420.89 : x
  2. Step 2: Convert to fraction form
    355,902.67/533,900.99 = 131,420.89/x
  3. Step 3: Cross multiply
    355,902.67x = 533,900.99 × 131,420.89
  4. Step 4: Simplify right side
    355,902.67x = 70,165,743,277.68
  5. Step 5: Solve for x
    x = 70,165,743,277.68/355,902.67
  6. Step 6: Final answer
    x = 197,148.68

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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.