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Finding the Fourth Proportional to 222,775.88, 307,402.30 and 127,288.76

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Solution

The fourth proportional to 222,775.88, 307,402.30 and 127,288.76 is: 175,642.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,775.88 : 307,402.30 = 127,288.76 : x
  2. Step 2: Convert to fraction form
    222,775.88/307,402.30 = 127,288.76/x
  3. Step 3: Cross multiply
    222,775.88x = 307,402.30 × 127,288.76
  4. Step 4: Simplify right side
    222,775.88x = 39,128,857,588.15
  5. Step 5: Solve for x
    x = 39,128,857,588.15/222,775.88
  6. Step 6: Final answer
    x = 175,642.25

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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.