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Finding the Fourth Proportional to 213,995.92, 321,047.26 and 64,238.98

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Solution

The fourth proportional to 213,995.92, 321,047.26 and 64,238.98 is: 96,374.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,995.92 : 321,047.26 = 64,238.98 : x
  2. Step 2: Convert to fraction form
    213,995.92/321,047.26 = 64,238.98/x
  3. Step 3: Cross multiply
    213,995.92x = 321,047.26 × 64,238.98
  4. Step 4: Simplify right side
    213,995.92x = 20,623,748,514.19
  5. Step 5: Solve for x
    x = 20,623,748,514.19/213,995.92
  6. Step 6: Final answer
    x = 96,374.49

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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.