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Finding the Fourth Proportional to 222,473.12, 307,017.80 and 126,977.84

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Solution

The fourth proportional to 222,473.12, 307,017.80 and 126,977.84 is: 175,232.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,473.12 : 307,017.80 = 126,977.84 : x
  2. Step 2: Convert to fraction form
    222,473.12/307,017.80 = 126,977.84/x
  3. Step 3: Cross multiply
    222,473.12x = 307,017.80 × 126,977.84
  4. Step 4: Simplify right side
    222,473.12x = 38,984,457,085.55
  5. Step 5: Solve for x
    x = 38,984,457,085.55/222,473.12
  6. Step 6: Final answer
    x = 175,232.21

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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.