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Finding the Fourth Proportional to 170,888.40, 256,332.60 and 71,015.40

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Solution

The fourth proportional to 170,888.40, 256,332.60 and 71,015.40 is: 106,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,888.40 : 256,332.60 = 71,015.40 : x
  2. Step 2: Convert to fraction form
    170,888.40/256,332.60 = 71,015.40/x
  3. Step 3: Cross multiply
    170,888.40x = 256,332.60 × 71,015.40
  4. Step 4: Simplify right side
    170,888.40x = 18,203,562,122.04
  5. Step 5: Solve for x
    x = 18,203,562,122.04/170,888.40
  6. Step 6: Final answer
    x = 106,523.10

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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.