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Finding the Fourth Proportional to 223,626.24, 308,598.62 and 128,126.79

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Solution

The fourth proportional to 223,626.24, 308,598.62 and 128,126.79 is: 176,811.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,626.24 : 308,598.62 = 128,126.79 : x
  2. Step 2: Convert to fraction form
    223,626.24/308,598.62 = 128,126.79/x
  3. Step 3: Cross multiply
    223,626.24x = 308,598.62 × 128,126.79
  4. Step 4: Simplify right side
    223,626.24x = 39,539,749,938.40
  5. Step 5: Solve for x
    x = 39,539,749,938.40/223,626.24
  6. Step 6: Final answer
    x = 176,811.76

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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.