Home / 384,904.98-531,159.45-212,818.41

Finding the Fourth Proportional to 384,904.98, 531,159.45 and 212,818.41

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Solution

The fourth proportional to 384,904.98, 531,159.45 and 212,818.41 is: 293,684.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,904.98 : 531,159.45 = 212,818.41 : x
  2. Step 2: Convert to fraction form
    384,904.98/531,159.45 = 212,818.41/x
  3. Step 3: Cross multiply
    384,904.98x = 531,159.45 × 212,818.41
  4. Step 4: Simplify right side
    384,904.98x = 113,040,509,605.47
  5. Step 5: Solve for x
    x = 113,040,509,605.47/384,904.98
  6. Step 6: Final answer
    x = 293,684.20

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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.