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Finding the Fourth Proportional to 166,870.40, 250,305.60 and 100,385.60

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Solution

The fourth proportional to 166,870.40, 250,305.60 and 100,385.60 is: 150,578.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,870.40 : 250,305.60 = 100,385.60 : x
  2. Step 2: Convert to fraction form
    166,870.40/250,305.60 = 100,385.60/x
  3. Step 3: Cross multiply
    166,870.40x = 250,305.60 × 100,385.60
  4. Step 4: Simplify right side
    166,870.40x = 25,127,077,839.36
  5. Step 5: Solve for x
    x = 25,127,077,839.36/166,870.40
  6. Step 6: Final answer
    x = 150,578.40

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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.