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Finding the Fourth Proportional to 214,891.49, 321,894.25 and 125,875.12

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Solution

The fourth proportional to 214,891.49, 321,894.25 and 125,875.12 is: 188,553.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,891.49 : 321,894.25 = 125,875.12 : x
  2. Step 2: Convert to fraction form
    214,891.49/321,894.25 = 125,875.12/x
  3. Step 3: Cross multiply
    214,891.49x = 321,894.25 × 125,875.12
  4. Step 4: Simplify right side
    214,891.49x = 40,518,477,346.06
  5. Step 5: Solve for x
    x = 40,518,477,346.06/214,891.49
  6. Step 6: Final answer
    x = 188,553.20

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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.