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Finding the Fourth Proportional to 213,359.88, 320,197.30 and 101,039.88

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Solution

The fourth proportional to 213,359.88, 320,197.30 and 101,039.88 is: 151,634.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,359.88 : 320,197.30 = 101,039.88 : x
  2. Step 2: Convert to fraction form
    213,359.88/320,197.30 = 101,039.88/x
  3. Step 3: Cross multiply
    213,359.88x = 320,197.30 × 101,039.88
  4. Step 4: Simplify right side
    213,359.88x = 32,352,698,284.81
  5. Step 5: Solve for x
    x = 32,352,698,284.81/213,359.88
  6. Step 6: Final answer
    x = 151,634.40

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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.