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Finding the Fourth Proportional to 202,262.40, 279,123.30 and 111,620.70

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Solution

The fourth proportional to 202,262.40, 279,123.30 and 111,620.70 is: 154,037.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,262.40 : 279,123.30 = 111,620.70 : x
  2. Step 2: Convert to fraction form
    202,262.40/279,123.30 = 111,620.70/x
  3. Step 3: Cross multiply
    202,262.40x = 279,123.30 × 111,620.70
  4. Step 4: Simplify right side
    202,262.40x = 31,155,938,132.31
  5. Step 5: Solve for x
    x = 31,155,938,132.31/202,262.40
  6. Step 6: Final answer
    x = 154,037.22

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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.