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Finding the Fourth Proportional to 278,040.60, 383,599.80 and 164,899.80

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Solution

The fourth proportional to 278,040.60, 383,599.80 and 164,899.80 is: 227,504.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,040.60 : 383,599.80 = 164,899.80 : x
  2. Step 2: Convert to fraction form
    278,040.60/383,599.80 = 164,899.80/x
  3. Step 3: Cross multiply
    278,040.60x = 383,599.80 × 164,899.80
  4. Step 4: Simplify right side
    278,040.60x = 63,255,530,300.04
  5. Step 5: Solve for x
    x = 63,255,530,300.04/278,040.60
  6. Step 6: Final answer
    x = 227,504.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.