Home / 213,567.40-320,357.50-73,323.88

Finding the Fourth Proportional to 213,567.40, 320,357.50 and 73,323.88

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Solution

The fourth proportional to 213,567.40, 320,357.50 and 73,323.88 is: 109,988.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,567.40 : 320,357.50 = 73,323.88 : x
  2. Step 2: Convert to fraction form
    213,567.40/320,357.50 = 73,323.88/x
  3. Step 3: Cross multiply
    213,567.40x = 320,357.50 × 73,323.88
  4. Step 4: Simplify right side
    213,567.40x = 23,489,854,887.10
  5. Step 5: Solve for x
    x = 23,489,854,887.10/213,567.40
  6. Step 6: Final answer
    x = 109,988.02

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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.