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Finding the Fourth Proportional to 214,084.31, 321,048.95 and 71,887.05

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Solution

The fourth proportional to 214,084.31, 321,048.95 and 71,887.05 is: 107,804.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,084.31 : 321,048.95 = 71,887.05 : x
  2. Step 2: Convert to fraction form
    214,084.31/321,048.95 = 71,887.05/x
  3. Step 3: Cross multiply
    214,084.31x = 321,048.95 × 71,887.05
  4. Step 4: Simplify right side
    214,084.31x = 23,079,261,561.66
  5. Step 5: Solve for x
    x = 23,079,261,561.66/214,084.31
  6. Step 6: Final answer
    x = 107,804.55

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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.