Home / 384,665.22-530,810.20-212,581.12

Finding the Fourth Proportional to 384,665.22, 530,810.20 and 212,581.12

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Solution

The fourth proportional to 384,665.22, 530,810.20 and 212,581.12 is: 293,346.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,665.22 : 530,810.20 = 212,581.12 : x
  2. Step 2: Convert to fraction form
    384,665.22/530,810.20 = 212,581.12/x
  3. Step 3: Cross multiply
    384,665.22x = 530,810.20 × 212,581.12
  4. Step 4: Simplify right side
    384,665.22x = 112,840,226,823.42
  5. Step 5: Solve for x
    x = 112,840,226,823.42/384,665.22
  6. Step 6: Final answer
    x = 293,346.58

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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.