Home / 213,860.20-320,099.10-197,271.40

Finding the Fourth Proportional to 213,860.20, 320,099.10 and 197,271.40

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Solution

The fourth proportional to 213,860.20, 320,099.10 and 197,271.40 is: 295,269.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,860.20 : 320,099.10 = 197,271.40 : x
  2. Step 2: Convert to fraction form
    213,860.20/320,099.10 = 197,271.40/x
  3. Step 3: Cross multiply
    213,860.20x = 320,099.10 × 197,271.40
  4. Step 4: Simplify right side
    213,860.20x = 63,146,397,595.74
  5. Step 5: Solve for x
    x = 63,146,397,595.74/213,860.20
  6. Step 6: Final answer
    x = 295,269.52

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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.