Home / 384,970.46-531,262.64-212,900.09

Finding the Fourth Proportional to 384,970.46, 531,262.64 and 212,900.09

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Solution

The fourth proportional to 384,970.46, 531,262.64 and 212,900.09 is: 293,804.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,970.46 : 531,262.64 = 212,900.09 : x
  2. Step 2: Convert to fraction form
    384,970.46/531,262.64 = 212,900.09/x
  3. Step 3: Cross multiply
    384,970.46x = 531,262.64 × 212,900.09
  4. Step 4: Simplify right side
    384,970.46x = 113,105,863,869.64
  5. Step 5: Solve for x
    x = 113,105,863,869.64/384,970.46
  6. Step 6: Final answer
    x = 293,804.01

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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.