Home / 216,570.08-324,756.72-66,782.48

Finding the Fourth Proportional to 216,570.08, 324,756.72 and 66,782.48

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Solution

The fourth proportional to 216,570.08, 324,756.72 and 66,782.48 is: 100,143.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,570.08 : 324,756.72 = 66,782.48 : x
  2. Step 2: Convert to fraction form
    216,570.08/324,756.72 = 66,782.48/x
  3. Step 3: Cross multiply
    216,570.08x = 324,756.72 × 66,782.48
  4. Step 4: Simplify right side
    216,570.08x = 21,688,059,158.27
  5. Step 5: Solve for x
    x = 21,688,059,158.27/216,570.08
  6. Step 6: Final answer
    x = 100,143.38

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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.