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Finding the Fourth Proportional to 245,033.97, 338,155.07 and 137,622.93

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Solution

The fourth proportional to 245,033.97, 338,155.07 and 137,622.93 is: 189,924.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,033.97 : 338,155.07 = 137,622.93 : x
  2. Step 2: Convert to fraction form
    245,033.97/338,155.07 = 137,622.93/x
  3. Step 3: Cross multiply
    245,033.97x = 338,155.07 × 137,622.93
  4. Step 4: Simplify right side
    245,033.97x = 46,537,890,839.64
  5. Step 5: Solve for x
    x = 46,537,890,839.64/245,033.97
  6. Step 6: Final answer
    x = 189,924.24

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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.