Home / 290,291.15-435,464.21-112,811.85

Finding the Fourth Proportional to 290,291.15, 435,464.21 and 112,811.85

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Solution

The fourth proportional to 290,291.15, 435,464.21 and 112,811.85 is: 169,228.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,291.15 : 435,464.21 = 112,811.85 : x
  2. Step 2: Convert to fraction form
    290,291.15/435,464.21 = 112,811.85/x
  3. Step 3: Cross multiply
    290,291.15x = 435,464.21 × 112,811.85
  4. Step 4: Simplify right side
    290,291.15x = 49,125,523,138.89
  5. Step 5: Solve for x
    x = 49,125,523,138.89/290,291.15
  6. Step 6: Final answer
    x = 169,228.46

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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.