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Finding the Fourth Proportional to 222,989.47, 307,726.30 and 121,014.93

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Solution

The fourth proportional to 222,989.47, 307,726.30 and 121,014.93 is: 167,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,989.47 : 307,726.30 = 121,014.93 : x
  2. Step 2: Convert to fraction form
    222,989.47/307,726.30 = 121,014.93/x
  3. Step 3: Cross multiply
    222,989.47x = 307,726.30 × 121,014.93
  4. Step 4: Simplify right side
    222,989.47x = 37,239,476,653.66
  5. Step 5: Solve for x
    x = 37,239,476,653.66/222,989.47
  6. Step 6: Final answer
    x = 167,001.05

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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.