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Finding the Fourth Proportional to 266,680.85, 368,019.53 and 145,822.21

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Solution

The fourth proportional to 266,680.85, 368,019.53 and 145,822.21 is: 201,234.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,680.85 : 368,019.53 = 145,822.21 : x
  2. Step 2: Convert to fraction form
    266,680.85/368,019.53 = 145,822.21/x
  3. Step 3: Cross multiply
    266,680.85x = 368,019.53 × 145,822.21
  4. Step 4: Simplify right side
    266,680.85x = 53,665,421,187.76
  5. Step 5: Solve for x
    x = 53,665,421,187.76/266,680.85
  6. Step 6: Final answer
    x = 201,234.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.