Home / 213,515.24-320,306.07-71,316.50

Finding the Fourth Proportional to 213,515.24, 320,306.07 and 71,316.50

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Solution

The fourth proportional to 213,515.24, 320,306.07 and 71,316.50 is: 106,985.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,515.24 : 320,306.07 = 71,316.50 : x
  2. Step 2: Convert to fraction form
    213,515.24/320,306.07 = 71,316.50/x
  3. Step 3: Cross multiply
    213,515.24x = 320,306.07 × 71,316.50
  4. Step 4: Simplify right side
    213,515.24x = 22,843,106,239.62
  5. Step 5: Solve for x
    x = 22,843,106,239.62/213,515.24
  6. Step 6: Final answer
    x = 106,985.84

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1.5x scale

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.