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Finding the Fourth Proportional to 251,421.69, 377,131.55 and 101,660.16

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Solution

The fourth proportional to 251,421.69, 377,131.55 and 101,660.16 is: 152,489.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,421.69 : 377,131.55 = 101,660.16 : x
  2. Step 2: Convert to fraction form
    251,421.69/377,131.55 = 101,660.16/x
  3. Step 3: Cross multiply
    251,421.69x = 377,131.55 × 101,660.16
  4. Step 4: Simplify right side
    251,421.69x = 38,339,253,205.75
  5. Step 5: Solve for x
    x = 38,339,253,205.75/251,421.69
  6. Step 6: Final answer
    x = 152,489.84

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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.