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Finding the Fourth Proportional to 266,660.76, 368,025.70 and 151,980.63

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Solution

The fourth proportional to 266,660.76, 368,025.70 and 151,980.63 is: 209,752.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,660.76 : 368,025.70 = 151,980.63 : x
  2. Step 2: Convert to fraction form
    266,660.76/368,025.70 = 151,980.63/x
  3. Step 3: Cross multiply
    266,660.76x = 368,025.70 × 151,980.63
  4. Step 4: Simplify right side
    266,660.76x = 55,932,777,729.62
  5. Step 5: Solve for x
    x = 55,932,777,729.62/266,660.76
  6. Step 6: Final answer
    x = 209,752.56

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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.