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Finding the Fourth Proportional to 170,210.56, 255,352.54 and 84,867.95

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Solution

The fourth proportional to 170,210.56, 255,352.54 and 84,867.95 is: 127,320.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,210.56 : 255,352.54 = 84,867.95 : x
  2. Step 2: Convert to fraction form
    170,210.56/255,352.54 = 84,867.95/x
  3. Step 3: Cross multiply
    170,210.56x = 255,352.54 × 84,867.95
  4. Step 4: Simplify right side
    170,210.56x = 21,671,245,320.33
  5. Step 5: Solve for x
    x = 21,671,245,320.33/170,210.56
  6. Step 6: Final answer
    x = 127,320.22

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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.