Home / 384,449.45-530,529.39-212,364.18

Finding the Fourth Proportional to 384,449.45, 530,529.39 and 212,364.18

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Solution

The fourth proportional to 384,449.45, 530,529.39 and 212,364.18 is: 293,056.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,449.45 : 530,529.39 = 212,364.18 : x
  2. Step 2: Convert to fraction form
    384,449.45/530,529.39 = 212,364.18/x
  3. Step 3: Cross multiply
    384,449.45x = 530,529.39 × 212,364.18
  4. Step 4: Simplify right side
    384,449.45x = 112,665,438,873.25
  5. Step 5: Solve for x
    x = 112,665,438,873.25/384,449.45
  6. Step 6: Final answer
    x = 293,056.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.