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Finding the Fourth Proportional to 223,558.04, 308,484.22 and 128,059.04

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Solution

The fourth proportional to 223,558.04, 308,484.22 and 128,059.04 is: 176,706.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,558.04 : 308,484.22 = 128,059.04 : x
  2. Step 2: Convert to fraction form
    223,558.04/308,484.22 = 128,059.04/x
  3. Step 3: Cross multiply
    223,558.04x = 308,484.22 × 128,059.04
  4. Step 4: Simplify right side
    223,558.04x = 39,504,193,068.35
  5. Step 5: Solve for x
    x = 39,504,193,068.35/223,558.04
  6. Step 6: Final answer
    x = 176,706.65

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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.