Home / 213,952.35-320,403.65-143,618.43

Finding the Fourth Proportional to 213,952.35, 320,403.65 and 143,618.43

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Solution

The fourth proportional to 213,952.35, 320,403.65 and 143,618.43 is: 215,075.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,952.35 : 320,403.65 = 143,618.43 : x
  2. Step 2: Convert to fraction form
    213,952.35/320,403.65 = 143,618.43/x
  3. Step 3: Cross multiply
    213,952.35x = 320,403.65 × 143,618.43
  4. Step 4: Simplify right side
    213,952.35x = 46,015,868,461.18
  5. Step 5: Solve for x
    x = 46,015,868,461.18/213,952.35
  6. Step 6: Final answer
    x = 215,075.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.