Home / 213,564.40-320,271.20-93,679.58

Finding the Fourth Proportional to 213,564.40, 320,271.20 and 93,679.58

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Solution

The fourth proportional to 213,564.40, 320,271.20 and 93,679.58 is: 140,486.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,564.40 : 320,271.20 = 93,679.58 : x
  2. Step 2: Convert to fraction form
    213,564.40/320,271.20 = 93,679.58/x
  3. Step 3: Cross multiply
    213,564.40x = 320,271.20 × 93,679.58
  4. Step 4: Simplify right side
    213,564.40x = 30,002,871,502.10
  5. Step 5: Solve for x
    x = 30,002,871,502.10/213,564.40
  6. Step 6: Final answer
    x = 140,486.30

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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.