Home / 384,628.50-530,786.03-212,541.66

Finding the Fourth Proportional to 384,628.50, 530,786.03 and 212,541.66

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Solution

The fourth proportional to 384,628.50, 530,786.03 and 212,541.66 is: 293,306.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,628.50 : 530,786.03 = 212,541.66 : x
  2. Step 2: Convert to fraction form
    384,628.50/530,786.03 = 212,541.66/x
  3. Step 3: Cross multiply
    384,628.50x = 530,786.03 × 212,541.66
  4. Step 4: Simplify right side
    384,628.50x = 112,814,142,858.30
  5. Step 5: Solve for x
    x = 112,814,142,858.30/384,628.50
  6. Step 6: Final answer
    x = 293,306.77

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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.