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Finding the Fourth Proportional to 170,074.40, 255,111.60 and 146,454.80

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Solution

The fourth proportional to 170,074.40, 255,111.60 and 146,454.80 is: 219,682.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,074.40 : 255,111.60 = 146,454.80 : x
  2. Step 2: Convert to fraction form
    170,074.40/255,111.60 = 146,454.80/x
  3. Step 3: Cross multiply
    170,074.40x = 255,111.60 × 146,454.80
  4. Step 4: Simplify right side
    170,074.40x = 37,362,318,355.68
  5. Step 5: Solve for x
    x = 37,362,318,355.68/170,074.40
  6. Step 6: Final answer
    x = 219,682.20

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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.