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Finding the Fourth Proportional to 223,752.21, 308,700.12 and 126,944.66

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Solution

The fourth proportional to 223,752.21, 308,700.12 and 126,944.66 is: 175,139.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,752.21 : 308,700.12 = 126,944.66 : x
  2. Step 2: Convert to fraction form
    223,752.21/308,700.12 = 126,944.66/x
  3. Step 3: Cross multiply
    223,752.21x = 308,700.12 × 126,944.66
  4. Step 4: Simplify right side
    223,752.21x = 39,187,830,231.86
  5. Step 5: Solve for x
    x = 39,187,830,231.86/223,752.21
  6. Step 6: Final answer
    x = 175,139.41

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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.