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Finding the Fourth Proportional to 379,999.72, 570,441.34 and 222,341.32

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Solution

The fourth proportional to 379,999.72, 570,441.34 and 222,341.32 is: 333,770.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,999.72 : 570,441.34 = 222,341.32 : x
  2. Step 2: Convert to fraction form
    379,999.72/570,441.34 = 222,341.32/x
  3. Step 3: Cross multiply
    379,999.72x = 570,441.34 × 222,341.32
  4. Step 4: Simplify right side
    379,999.72x = 126,832,680,518.17
  5. Step 5: Solve for x
    x = 126,832,680,518.17/379,999.72
  6. Step 6: Final answer
    x = 333,770.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.