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Finding the Fourth Proportional to 245,121.01, 338,303.82 and 149,682.76

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Solution

The fourth proportional to 245,121.01, 338,303.82 and 149,682.76 is: 206,584.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,121.01 : 338,303.82 = 149,682.76 : x
  2. Step 2: Convert to fraction form
    245,121.01/338,303.82 = 149,682.76/x
  3. Step 3: Cross multiply
    245,121.01x = 338,303.82 × 149,682.76
  4. Step 4: Simplify right side
    245,121.01x = 50,638,249,919.02
  5. Step 5: Solve for x
    x = 50,638,249,919.02/245,121.01
  6. Step 6: Final answer
    x = 206,584.70

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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.