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Finding the Fourth Proportional to 222,783.63, 307,457.67 and 127,288.28

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Solution

The fourth proportional to 222,783.63, 307,457.67 and 127,288.28 is: 175,667.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,783.63 : 307,457.67 = 127,288.28 : x
  2. Step 2: Convert to fraction form
    222,783.63/307,457.67 = 127,288.28/x
  3. Step 3: Cross multiply
    222,783.63x = 307,457.67 × 127,288.28
  4. Step 4: Simplify right side
    222,783.63x = 39,135,756,449.82
  5. Step 5: Solve for x
    x = 39,135,756,449.82/222,783.63
  6. Step 6: Final answer
    x = 175,667.11

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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.