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Finding the Fourth Proportional to 216,487.17, 298,752.75 and 120,993.93

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Solution

The fourth proportional to 216,487.17, 298,752.75 and 120,993.93 is: 166,971.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,487.17 : 298,752.75 = 120,993.93 : x
  2. Step 2: Convert to fraction form
    216,487.17/298,752.75 = 120,993.93/x
  3. Step 3: Cross multiply
    216,487.17x = 298,752.75 × 120,993.93
  4. Step 4: Simplify right side
    216,487.17x = 36,147,269,320.81
  5. Step 5: Solve for x
    x = 36,147,269,320.81/216,487.17
  6. Step 6: Final answer
    x = 166,971.88

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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.