Home / 290,403.38-435,631.98-112,923.74

Finding the Fourth Proportional to 290,403.38, 435,631.98 and 112,923.74

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Solution

The fourth proportional to 290,403.38, 435,631.98 and 112,923.74 is: 169,396.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,403.38 : 435,631.98 = 112,923.74 : x
  2. Step 2: Convert to fraction form
    290,403.38/435,631.98 = 112,923.74/x
  3. Step 3: Cross multiply
    290,403.38x = 435,631.98 × 112,923.74
  4. Step 4: Simplify right side
    290,403.38x = 49,193,192,445.21
  5. Step 5: Solve for x
    x = 49,193,192,445.21/290,403.38
  6. Step 6: Final answer
    x = 169,396.07

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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.