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Finding the Fourth Proportional to 223,587.41, 308,550.40 and 128,094.48

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Solution

The fourth proportional to 223,587.41, 308,550.40 and 128,094.48 is: 176,770.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,587.41 : 308,550.40 = 128,094.48 : x
  2. Step 2: Convert to fraction form
    223,587.41/308,550.40 = 128,094.48/x
  3. Step 3: Cross multiply
    223,587.41x = 308,550.40 × 128,094.48
  4. Step 4: Simplify right side
    223,587.41x = 39,523,602,721.56
  5. Step 5: Solve for x
    x = 39,523,602,721.56/223,587.41
  6. Step 6: Final answer
    x = 176,770.26

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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.