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Finding the Fourth Proportional to 389,415.98, 537,443.34 and 226,037.57

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Solution

The fourth proportional to 389,415.98, 537,443.34 and 226,037.57 is: 311,960.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,415.98 : 537,443.34 = 226,037.57 : x
  2. Step 2: Convert to fraction form
    389,415.98/537,443.34 = 226,037.57/x
  3. Step 3: Cross multiply
    389,415.98x = 537,443.34 × 226,037.57
  4. Step 4: Simplify right side
    389,415.98x = 121,482,383,051.43
  5. Step 5: Solve for x
    x = 121,482,383,051.43/389,415.98
  6. Step 6: Final answer
    x = 311,960.44

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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.