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Finding the Fourth Proportional to 214,291.58, 321,482.34 and 81,168.89

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Solution

The fourth proportional to 214,291.58, 321,482.34 and 81,168.89 is: 121,770.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,291.58 : 321,482.34 = 81,168.89 : x
  2. Step 2: Convert to fraction form
    214,291.58/321,482.34 = 81,168.89/x
  3. Step 3: Cross multiply
    214,291.58x = 321,482.34 × 81,168.89
  4. Step 4: Simplify right side
    214,291.58x = 26,094,363,084.99
  5. Step 5: Solve for x
    x = 26,094,363,084.99/214,291.58
  6. Step 6: Final answer
    x = 121,770.36

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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.