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Finding the Fourth Proportional to 222,475.62, 307,021.25 and 126,980.34

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Solution

The fourth proportional to 222,475.62, 307,021.25 and 126,980.34 is: 175,235.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,475.62 : 307,021.25 = 126,980.34 : x
  2. Step 2: Convert to fraction form
    222,475.62/307,021.25 = 126,980.34/x
  3. Step 3: Cross multiply
    222,475.62x = 307,021.25 × 126,980.34
  4. Step 4: Simplify right side
    222,475.62x = 38,985,662,712.23
  5. Step 5: Solve for x
    x = 38,985,662,712.23/222,475.62
  6. Step 6: Final answer
    x = 175,235.66

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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.