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Finding the Fourth Proportional to 216,241.74, 298,393.74 and 139,763.16

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Solution

The fourth proportional to 216,241.74, 298,393.74 and 139,763.16 is: 192,860.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,241.74 : 298,393.74 = 139,763.16 : x
  2. Step 2: Convert to fraction form
    216,241.74/298,393.74 = 139,763.16/x
  3. Step 3: Cross multiply
    216,241.74x = 298,393.74 × 139,763.16
  4. Step 4: Simplify right side
    216,241.74x = 41,704,452,026.62
  5. Step 5: Solve for x
    x = 41,704,452,026.62/216,241.74
  6. Step 6: Final answer
    x = 192,860.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.