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Finding the Fourth Proportional to 222,575.04, 307,152 and 121,970.88

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Solution

The fourth proportional to 222,575.04, 307,152 and 121,970.88 is: 168,318.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,575.04 : 307,152 = 121,970.88 : x
  2. Step 2: Convert to fraction form
    222,575.04/307,152 = 121,970.88/x
  3. Step 3: Cross multiply
    222,575.04x = 307,152 × 121,970.88
  4. Step 4: Simplify right side
    222,575.04x = 37,463,599,733.76
  5. Step 5: Solve for x
    x = 37,463,599,733.76/222,575.04
  6. Step 6: Final answer
    x = 168,318.96

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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.