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Finding the Fourth Proportional to 266,971.60, 400,457.40 and 161,995.60

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Solution

The fourth proportional to 266,971.60, 400,457.40 and 161,995.60 is: 242,993.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,971.60 : 400,457.40 = 161,995.60 : x
  2. Step 2: Convert to fraction form
    266,971.60/400,457.40 = 161,995.60/x
  3. Step 3: Cross multiply
    266,971.60x = 400,457.40 × 161,995.60
  4. Step 4: Simplify right side
    266,971.60x = 64,872,336,787.44
  5. Step 5: Solve for x
    x = 64,872,336,787.44/266,971.60
  6. Step 6: Final answer
    x = 242,993.40

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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.