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Finding the Fourth Proportional to 255,689.97, 352,485.40 and 201,147.35

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Solution

The fourth proportional to 255,689.97, 352,485.40 and 201,147.35 is: 277,294.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,689.97 : 352,485.40 = 201,147.35 : x
  2. Step 2: Convert to fraction form
    255,689.97/352,485.40 = 201,147.35/x
  3. Step 3: Cross multiply
    255,689.97x = 352,485.40 × 201,147.35
  4. Step 4: Simplify right side
    255,689.97x = 70,901,501,858.39
  5. Step 5: Solve for x
    x = 70,901,501,858.39/255,689.97
  6. Step 6: Final answer
    x = 277,294.81

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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.