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Finding the Fourth Proportional to 222,065.12, 306,457.12 and 121,463.04

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Solution

The fourth proportional to 222,065.12, 306,457.12 and 121,463.04 is: 167,622.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,065.12 : 306,457.12 = 121,463.04 : x
  2. Step 2: Convert to fraction form
    222,065.12/306,457.12 = 121,463.04/x
  3. Step 3: Cross multiply
    222,065.12x = 306,457.12 × 121,463.04
  4. Step 4: Simplify right side
    222,065.12x = 37,223,213,424.84
  5. Step 5: Solve for x
    x = 37,223,213,424.84/222,065.12
  6. Step 6: Final answer
    x = 167,622.96

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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.