Home / 384,228.05-530,243.04-212,145.44

Finding the Fourth Proportional to 384,228.05, 530,243.04 and 212,145.44

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Solution

The fourth proportional to 384,228.05, 530,243.04 and 212,145.44 is: 292,765.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,228.05 : 530,243.04 = 212,145.44 : x
  2. Step 2: Convert to fraction form
    384,228.05/530,243.04 = 212,145.44/x
  3. Step 3: Cross multiply
    384,228.05x = 530,243.04 × 212,145.44
  4. Step 4: Simplify right side
    384,228.05x = 112,488,641,172.07
  5. Step 5: Solve for x
    x = 112,488,641,172.07/384,228.05
  6. Step 6: Final answer
    x = 292,765.31

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1.5x scale

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.