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Finding the Fourth Proportional to 223,161.17, 307,809.56 and 142,552.89

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Solution

The fourth proportional to 223,161.17, 307,809.56 and 142,552.89 is: 196,625.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,161.17 : 307,809.56 = 142,552.89 : x
  2. Step 2: Convert to fraction form
    223,161.17/307,809.56 = 142,552.89/x
  3. Step 3: Cross multiply
    223,161.17x = 307,809.56 × 142,552.89
  4. Step 4: Simplify right side
    223,161.17x = 43,879,141,634.86
  5. Step 5: Solve for x
    x = 43,879,141,634.86/223,161.17
  6. Step 6: Final answer
    x = 196,625.35

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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.