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Finding the Fourth Proportional to 266,022.90, 399,034.35 and 166,490.10

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Solution

The fourth proportional to 266,022.90, 399,034.35 and 166,490.10 is: 249,735.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,022.90 : 399,034.35 = 166,490.10 : x
  2. Step 2: Convert to fraction form
    266,022.90/399,034.35 = 166,490.10/x
  3. Step 3: Cross multiply
    266,022.90x = 399,034.35 × 166,490.10
  4. Step 4: Simplify right side
    266,022.90x = 66,435,268,834.94
  5. Step 5: Solve for x
    x = 66,435,268,834.94/266,022.90
  6. Step 6: Final answer
    x = 249,735.15

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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.