Home / 384,721.08-530,942.56-212,635.36

Finding the Fourth Proportional to 384,721.08, 530,942.56 and 212,635.36

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Solution

The fourth proportional to 384,721.08, 530,942.56 and 212,635.36 is: 293,451.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,721.08 : 530,942.56 = 212,635.36 : x
  2. Step 2: Convert to fraction form
    384,721.08/530,942.56 = 212,635.36/x
  3. Step 3: Cross multiply
    384,721.08x = 530,942.56 × 212,635.36
  4. Step 4: Simplify right side
    384,721.08x = 112,897,162,384.92
  5. Step 5: Solve for x
    x = 112,897,162,384.92/384,721.08
  6. Step 6: Final answer
    x = 293,451.98

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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.