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Finding the Fourth Proportional to 170,256.60, 255,530.70 and 75,632.40

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Solution

The fourth proportional to 170,256.60, 255,530.70 and 75,632.40 is: 113,513.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,256.60 : 255,530.70 = 75,632.40 : x
  2. Step 2: Convert to fraction form
    170,256.60/255,530.70 = 75,632.40/x
  3. Step 3: Cross multiply
    170,256.60x = 255,530.70 × 75,632.40
  4. Step 4: Simplify right side
    170,256.60x = 19,326,400,114.68
  5. Step 5: Solve for x
    x = 19,326,400,114.68/170,256.60
  6. Step 6: Final answer
    x = 113,513.37

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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.