Home / 216,157.02-324,222.68-66,398.72

Finding the Fourth Proportional to 216,157.02, 324,222.68 and 66,398.72

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Solution

The fourth proportional to 216,157.02, 324,222.68 and 66,398.72 is: 99,594.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,157.02 : 324,222.68 = 66,398.72 : x
  2. Step 2: Convert to fraction form
    216,157.02/324,222.68 = 66,398.72/x
  3. Step 3: Cross multiply
    216,157.02x = 324,222.68 × 66,398.72
  4. Step 4: Simplify right side
    216,157.02x = 21,527,970,946.97
  5. Step 5: Solve for x
    x = 21,527,970,946.97/216,157.02
  6. Step 6: Final answer
    x = 99,594.13

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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.