Home / 321,271.08-443,356.70-178,033.52

Finding the Fourth Proportional to 321,271.08, 443,356.70 and 178,033.52

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Solution

The fourth proportional to 321,271.08, 443,356.70 and 178,033.52 is: 245,687.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,271.08 : 443,356.70 = 178,033.52 : x
  2. Step 2: Convert to fraction form
    321,271.08/443,356.70 = 178,033.52/x
  3. Step 3: Cross multiply
    321,271.08x = 443,356.70 × 178,033.52
  4. Step 4: Simplify right side
    321,271.08x = 78,932,353,916.58
  5. Step 5: Solve for x
    x = 78,932,353,916.58/321,271.08
  6. Step 6: Final answer
    x = 245,687.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.