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Finding the Fourth Proportional to 339,449.87, 468,438.86 and 186,484.75

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Solution

The fourth proportional to 339,449.87, 468,438.86 and 186,484.75 is: 257,347.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,449.87 : 468,438.86 = 186,484.75 : x
  2. Step 2: Convert to fraction form
    339,449.87/468,438.86 = 186,484.75/x
  3. Step 3: Cross multiply
    339,449.87x = 468,438.86 × 186,484.75
  4. Step 4: Simplify right side
    339,449.87x = 87,356,702,992.50
  5. Step 5: Solve for x
    x = 87,356,702,992.50/339,449.87
  6. Step 6: Final answer
    x = 257,347.87

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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.