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Finding the Fourth Proportional to 251,350.70, 346,811.60 and 149,412.20

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Solution

The fourth proportional to 251,350.70, 346,811.60 and 149,412.20 is: 206,157.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,350.70 : 346,811.60 = 149,412.20 : x
  2. Step 2: Convert to fraction form
    251,350.70/346,811.60 = 149,412.20/x
  3. Step 3: Cross multiply
    251,350.70x = 346,811.60 × 149,412.20
  4. Step 4: Simplify right side
    251,350.70x = 51,817,884,141.52
  5. Step 5: Solve for x
    x = 51,817,884,141.52/251,350.70
  6. Step 6: Final answer
    x = 206,157.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.