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Finding the Fourth Proportional to 202,359.75, 279,256.46 and 112,935.75

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Solution

The fourth proportional to 202,359.75, 279,256.46 and 112,935.75 is: 155,851.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,359.75 : 279,256.46 = 112,935.75 : x
  2. Step 2: Convert to fraction form
    202,359.75/279,256.46 = 112,935.75/x
  3. Step 3: Cross multiply
    202,359.75x = 279,256.46 × 112,935.75
  4. Step 4: Simplify right side
    202,359.75x = 31,538,037,752.45
  5. Step 5: Solve for x
    x = 31,538,037,752.45/202,359.75
  6. Step 6: Final answer
    x = 155,851.34

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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.