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Finding the Fourth Proportional to 245,033.72, 338,154.72 and 137,622.68

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Solution

The fourth proportional to 245,033.72, 338,154.72 and 137,622.68 is: 189,923.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,033.72 : 338,154.72 = 137,622.68 : x
  2. Step 2: Convert to fraction form
    245,033.72/338,154.72 = 137,622.68/x
  3. Step 3: Cross multiply
    245,033.72x = 338,154.72 × 137,622.68
  4. Step 4: Simplify right side
    245,033.72x = 46,537,758,821.05
  5. Step 5: Solve for x
    x = 46,537,758,821.05/245,033.72
  6. Step 6: Final answer
    x = 189,923.90

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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.