Home / 384,208.61-530,205.38-212,137.28

Finding the Fourth Proportional to 384,208.61, 530,205.38 and 212,137.28

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Solution

The fourth proportional to 384,208.61, 530,205.38 and 212,137.28 is: 292,748.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,208.61 : 530,205.38 = 212,137.28 : x
  2. Step 2: Convert to fraction form
    384,208.61/530,205.38 = 212,137.28/x
  3. Step 3: Cross multiply
    384,208.61x = 530,205.38 × 212,137.28
  4. Step 4: Simplify right side
    384,208.61x = 112,476,323,442.85
  5. Step 5: Solve for x
    x = 112,476,323,442.85/384,208.61
  6. Step 6: Final answer
    x = 292,748.06

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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.