Home / 384,139.30-530,141.61-212,090.44

Finding the Fourth Proportional to 384,139.30, 530,141.61 and 212,090.44

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Solution

The fourth proportional to 384,139.30, 530,141.61 and 212,090.44 is: 292,701.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,139.30 : 530,141.61 = 212,090.44 : x
  2. Step 2: Convert to fraction form
    384,139.30/530,141.61 = 212,090.44/x
  3. Step 3: Cross multiply
    384,139.30x = 530,141.61 × 212,090.44
  4. Step 4: Simplify right side
    384,139.30x = 112,437,967,327.21
  5. Step 5: Solve for x
    x = 112,437,967,327.21/384,139.30
  6. Step 6: Final answer
    x = 292,701.03

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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.