Home / 314,960.32-471,914.52-221,298.40

Finding the Fourth Proportional to 314,960.32, 471,914.52 and 221,298.40

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Solution

The fourth proportional to 314,960.32, 471,914.52 and 221,298.40 is: 331,578.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,960.32 : 471,914.52 = 221,298.40 : x
  2. Step 2: Convert to fraction form
    314,960.32/471,914.52 = 221,298.40/x
  3. Step 3: Cross multiply
    314,960.32x = 471,914.52 × 221,298.40
  4. Step 4: Simplify right side
    314,960.32x = 104,433,928,212.77
  5. Step 5: Solve for x
    x = 104,433,928,212.77/314,960.32
  6. Step 6: Final answer
    x = 331,578.05

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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.