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Finding the Fourth Proportional to 216,403.65, 324,623.93 and 56,500.80

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Solution

The fourth proportional to 216,403.65, 324,623.93 and 56,500.80 is: 84,756.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,403.65 : 324,623.93 = 56,500.80 : x
  2. Step 2: Convert to fraction form
    216,403.65/324,623.93 = 56,500.80/x
  3. Step 3: Cross multiply
    216,403.65x = 324,623.93 × 56,500.80
  4. Step 4: Simplify right side
    216,403.65x = 18,341,512,685.72
  5. Step 5: Solve for x
    x = 18,341,512,685.72/216,403.65
  6. Step 6: Final answer
    x = 84,756.02

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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.