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Finding the Fourth Proportional to 223,525.42, 308,455.64 and 126,735.79

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Solution

The fourth proportional to 223,525.42, 308,455.64 and 126,735.79 is: 174,890.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,525.42 : 308,455.64 = 126,735.79 : x
  2. Step 2: Convert to fraction form
    223,525.42/308,455.64 = 126,735.79/x
  3. Step 3: Cross multiply
    223,525.42x = 308,455.64 × 126,735.79
  4. Step 4: Simplify right side
    223,525.42x = 39,092,369,577.04
  5. Step 5: Solve for x
    x = 39,092,369,577.04/223,525.42
  6. Step 6: Final answer
    x = 174,890.04

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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.