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Finding the Fourth Proportional to 216,541.92, 324,831 and 56,617.55

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Solution

The fourth proportional to 216,541.92, 324,831 and 56,617.55 is: 84,931.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,541.92 : 324,831 = 56,617.55 : x
  2. Step 2: Convert to fraction form
    216,541.92/324,831 = 56,617.55/x
  3. Step 3: Cross multiply
    216,541.92x = 324,831 × 56,617.55
  4. Step 4: Simplify right side
    216,541.92x = 18,391,133,759.90
  5. Step 5: Solve for x
    x = 18,391,133,759.90/216,541.92
  6. Step 6: Final answer
    x = 84,931.06

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1.5x scale

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.