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Finding the Fourth Proportional to 290,831.29, 435,801.33 and 195,709.55

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Solution

The fourth proportional to 290,831.29, 435,801.33 and 195,709.55 is: 293,264.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,831.29 : 435,801.33 = 195,709.55 : x
  2. Step 2: Convert to fraction form
    290,831.29/435,801.33 = 195,709.55/x
  3. Step 3: Cross multiply
    290,831.29x = 435,801.33 × 195,709.55
  4. Step 4: Simplify right side
    290,831.29x = 85,290,482,183.70
  5. Step 5: Solve for x
    x = 85,290,482,183.70/290,831.29
  6. Step 6: Final answer
    x = 293,264.46

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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.