Home / 384,936.30-531,165.72-212,830.98

Finding the Fourth Proportional to 384,936.30, 531,165.72 and 212,830.98

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Solution

The fourth proportional to 384,936.30, 531,165.72 and 212,830.98 is: 293,681.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,936.30 : 531,165.72 = 212,830.98 : x
  2. Step 2: Convert to fraction form
    384,936.30/531,165.72 = 212,830.98/x
  3. Step 3: Cross multiply
    384,936.30x = 531,165.72 × 212,830.98
  4. Step 4: Simplify right side
    384,936.30x = 113,048,520,730.01
  5. Step 5: Solve for x
    x = 113,048,520,730.01/384,936.30
  6. Step 6: Final answer
    x = 293,681.11

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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.