Home / 215,629.66-321,928.34-164,762.47

Finding the Fourth Proportional to 215,629.66, 321,928.34 and 164,762.47

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Solution

The fourth proportional to 215,629.66, 321,928.34 and 164,762.47 is: 245,985.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,629.66 : 321,928.34 = 164,762.47 : x
  2. Step 2: Convert to fraction form
    215,629.66/321,928.34 = 164,762.47/x
  3. Step 3: Cross multiply
    215,629.66x = 321,928.34 × 164,762.47
  4. Step 4: Simplify right side
    215,629.66x = 53,041,708,461.40
  5. Step 5: Solve for x
    x = 53,041,708,461.40/215,629.66
  6. Step 6: Final answer
    x = 245,985.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.