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Finding the Fourth Proportional to 222,980.80, 307,714.31 and 121,006.23

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Solution

The fourth proportional to 222,980.80, 307,714.31 and 121,006.23 is: 166,989.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,980.80 : 307,714.31 = 121,006.23 : x
  2. Step 2: Convert to fraction form
    222,980.80/307,714.31 = 121,006.23/x
  3. Step 3: Cross multiply
    222,980.80x = 307,714.31 × 121,006.23
  4. Step 4: Simplify right side
    222,980.80x = 37,235,348,130.41
  5. Step 5: Solve for x
    x = 37,235,348,130.41/222,980.80
  6. Step 6: Final answer
    x = 166,989.03

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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.