Home / 384,947.24-531,205.56-212,855.18

Finding the Fourth Proportional to 384,947.24, 531,205.56 and 212,855.18

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Solution

The fourth proportional to 384,947.24, 531,205.56 and 212,855.18 is: 293,728.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,947.24 : 531,205.56 = 212,855.18 : x
  2. Step 2: Convert to fraction form
    384,947.24/531,205.56 = 212,855.18/x
  3. Step 3: Cross multiply
    384,947.24x = 531,205.56 × 212,855.18
  4. Step 4: Simplify right side
    384,947.24x = 113,069,852,434.77
  5. Step 5: Solve for x
    x = 113,069,852,434.77/384,947.24
  6. Step 6: Final answer
    x = 293,728.18

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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.