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Finding the Fourth Proportional to 290,315.92, 435,361.92 and 112,799.56

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Solution

The fourth proportional to 290,315.92, 435,361.92 and 112,799.56 is: 169,155.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,315.92 : 435,361.92 = 112,799.56 : x
  2. Step 2: Convert to fraction form
    290,315.92/435,361.92 = 112,799.56/x
  3. Step 3: Cross multiply
    290,315.92x = 435,361.92 × 112,799.56
  4. Step 4: Simplify right side
    290,315.92x = 49,108,633,016.76
  5. Step 5: Solve for x
    x = 49,108,633,016.76/290,315.92
  6. Step 6: Final answer
    x = 169,155.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.