Home / 290,826.28-436,155.12-113,293.72

Finding the Fourth Proportional to 290,826.28, 436,155.12 and 113,293.72

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Solution

The fourth proportional to 290,826.28, 436,155.12 and 113,293.72 is: 169,907.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,826.28 : 436,155.12 = 113,293.72 : x
  2. Step 2: Convert to fraction form
    290,826.28/436,155.12 = 113,293.72/x
  3. Step 3: Cross multiply
    290,826.28x = 436,155.12 × 113,293.72
  4. Step 4: Simplify right side
    290,826.28x = 49,413,636,041.85
  5. Step 5: Solve for x
    x = 49,413,636,041.85/290,826.28
  6. Step 6: Final answer
    x = 169,907.74

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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.