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Finding the Fourth Proportional to 216,990.45, 299,246.99 and 148,887.27

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Solution

The fourth proportional to 216,990.45, 299,246.99 and 148,887.27 is: 205,327.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,990.45 : 299,246.99 = 148,887.27 : x
  2. Step 2: Convert to fraction form
    216,990.45/299,246.99 = 148,887.27/x
  3. Step 3: Cross multiply
    216,990.45x = 299,246.99 × 148,887.27
  4. Step 4: Simplify right side
    216,990.45x = 44,554,066,652.38
  5. Step 5: Solve for x
    x = 44,554,066,652.38/216,990.45
  6. Step 6: Final answer
    x = 205,327.32

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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.