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Finding the Fourth Proportional to 266,685.60, 400,028.40 and 161,709.60

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Solution

The fourth proportional to 266,685.60, 400,028.40 and 161,709.60 is: 242,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,685.60 : 400,028.40 = 161,709.60 : x
  2. Step 2: Convert to fraction form
    266,685.60/400,028.40 = 161,709.60/x
  3. Step 3: Cross multiply
    266,685.60x = 400,028.40 × 161,709.60
  4. Step 4: Simplify right side
    266,685.60x = 64,688,432,552.64
  5. Step 5: Solve for x
    x = 64,688,432,552.64/266,685.60
  6. Step 6: Final answer
    x = 242,564.40

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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.