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Finding the Fourth Proportional to 266,230.80, 399,637.80 and 166,503.60

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Solution

The fourth proportional to 266,230.80, 399,637.80 and 166,503.60 is: 249,937.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,230.80 : 399,637.80 = 166,503.60 : x
  2. Step 2: Convert to fraction form
    266,230.80/399,637.80 = 166,503.60/x
  3. Step 3: Cross multiply
    266,230.80x = 399,637.80 × 166,503.60
  4. Step 4: Simplify right side
    266,230.80x = 66,541,132,396.08
  5. Step 5: Solve for x
    x = 66,541,132,396.08/266,230.80
  6. Step 6: Final answer
    x = 249,937.77

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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.