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Finding the Fourth Proportional to 213,998.59, 320,504.45 and 153,652.44

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Solution

The fourth proportional to 213,998.59, 320,504.45 and 153,652.44 is: 230,124.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,998.59 : 320,504.45 = 153,652.44 : x
  2. Step 2: Convert to fraction form
    213,998.59/320,504.45 = 153,652.44/x
  3. Step 3: Cross multiply
    213,998.59x = 320,504.45 × 153,652.44
  4. Step 4: Simplify right side
    213,998.59x = 49,246,291,206.99
  5. Step 5: Solve for x
    x = 49,246,291,206.99/213,998.59
  6. Step 6: Final answer
    x = 230,124.37

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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.