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Finding the Fourth Proportional to 222,312.64, 306,808.48 and 126,821.44

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Solution

The fourth proportional to 222,312.64, 306,808.48 and 126,821.44 is: 175,023.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,312.64 : 306,808.48 = 126,821.44 : x
  2. Step 2: Convert to fraction form
    222,312.64/306,808.48 = 126,821.44/x
  3. Step 3: Cross multiply
    222,312.64x = 306,808.48 × 126,821.44
  4. Step 4: Simplify right side
    222,312.64x = 38,909,893,237.81
  5. Step 5: Solve for x
    x = 38,909,893,237.81/222,312.64
  6. Step 6: Final answer
    x = 175,023.31

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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.