Home / 213,560.28-320,343.53-55,788.75

Finding the Fourth Proportional to 213,560.28, 320,343.53 and 55,788.75

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Solution

The fourth proportional to 213,560.28, 320,343.53 and 55,788.75 is: 83,683.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,560.28 : 320,343.53 = 55,788.75 : x
  2. Step 2: Convert to fraction form
    213,560.28/320,343.53 = 55,788.75/x
  3. Step 3: Cross multiply
    213,560.28x = 320,343.53 × 55,788.75
  4. Step 4: Simplify right side
    213,560.28x = 17,871,565,109.29
  5. Step 5: Solve for x
    x = 17,871,565,109.29/213,560.28
  6. Step 6: Final answer
    x = 83,683.94

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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.