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Finding the Fourth Proportional to 290,363.30, 435,544.95 and 112,911.83

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Solution

The fourth proportional to 290,363.30, 435,544.95 and 112,911.83 is: 169,367.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,363.30 : 435,544.95 = 112,911.83 : x
  2. Step 2: Convert to fraction form
    290,363.30/435,544.95 = 112,911.83/x
  3. Step 3: Cross multiply
    290,363.30x = 435,544.95 × 112,911.83
  4. Step 4: Simplify right side
    290,363.30x = 49,178,176,595.62
  5. Step 5: Solve for x
    x = 49,178,176,595.62/290,363.30
  6. Step 6: Final answer
    x = 169,367.74

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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.