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Finding the Fourth Proportional to 170,259.64, 255,348.36 and 75,437.40

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Solution

The fourth proportional to 170,259.64, 255,348.36 and 75,437.40 is: 113,137.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,259.64 : 255,348.36 = 75,437.40 : x
  2. Step 2: Convert to fraction form
    170,259.64/255,348.36 = 75,437.40/x
  3. Step 3: Cross multiply
    170,259.64x = 255,348.36 × 75,437.40
  4. Step 4: Simplify right side
    170,259.64x = 19,262,816,372.66
  5. Step 5: Solve for x
    x = 19,262,816,372.66/170,259.64
  6. Step 6: Final answer
    x = 113,137.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.