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Finding the Fourth Proportional to 222,836.78, 307,510.56 and 126,038.94

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Solution

The fourth proportional to 222,836.78, 307,510.56 and 126,038.94 is: 173,931.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,836.78 : 307,510.56 = 126,038.94 : x
  2. Step 2: Convert to fraction form
    222,836.78/307,510.56 = 126,038.94/x
  3. Step 3: Cross multiply
    222,836.78x = 307,510.56 × 126,038.94
  4. Step 4: Simplify right side
    222,836.78x = 38,758,305,021.21
  5. Step 5: Solve for x
    x = 38,758,305,021.21/222,836.78
  6. Step 6: Final answer
    x = 173,931.36

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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.