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Finding the Fourth Proportional to 403,321.80, 604,982.70 and 166,834.20

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Solution

The fourth proportional to 403,321.80, 604,982.70 and 166,834.20 is: 250,251.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,321.80 : 604,982.70 = 166,834.20 : x
  2. Step 2: Convert to fraction form
    403,321.80/604,982.70 = 166,834.20/x
  3. Step 3: Cross multiply
    403,321.80x = 604,982.70 × 166,834.20
  4. Step 4: Simplify right side
    403,321.80x = 100,931,804,768.34
  5. Step 5: Solve for x
    x = 100,931,804,768.34/403,321.80
  6. Step 6: Final answer
    x = 250,251.30

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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.