Home / 222,783.12-307,456.98-127,287.76

Finding the Fourth Proportional to 222,783.12, 307,456.98 and 127,287.76

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Solution

The fourth proportional to 222,783.12, 307,456.98 and 127,287.76 is: 175,666.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,783.12 : 307,456.98 = 127,287.76 : x
  2. Step 2: Convert to fraction form
    222,783.12/307,456.98 = 127,287.76/x
  3. Step 3: Cross multiply
    222,783.12x = 307,456.98 × 127,287.76
  4. Step 4: Simplify right side
    222,783.12x = 39,135,510,280.56
  5. Step 5: Solve for x
    x = 39,135,510,280.56/222,783.12
  6. Step 6: Final answer
    x = 175,666.41

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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.