Home / 213,582.95-320,216.25-129,323.31

Finding the Fourth Proportional to 213,582.95, 320,216.25 and 129,323.31

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Solution

The fourth proportional to 213,582.95, 320,216.25 and 129,323.31 is: 193,889.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,582.95 : 320,216.25 = 129,323.31 : x
  2. Step 2: Convert to fraction form
    213,582.95/320,216.25 = 129,323.31/x
  3. Step 3: Cross multiply
    213,582.95x = 320,216.25 × 129,323.31
  4. Step 4: Simplify right side
    213,582.95x = 41,411,425,365.79
  5. Step 5: Solve for x
    x = 41,411,425,365.79/213,582.95
  6. Step 6: Final answer
    x = 193,889.19

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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.