Home / 212,537.89-318,856.02-72,296.50

Finding the Fourth Proportional to 212,537.89, 318,856.02 and 72,296.50

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Solution

The fourth proportional to 212,537.89, 318,856.02 and 72,296.50 is: 108,461.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,537.89 : 318,856.02 = 72,296.50 : x
  2. Step 2: Convert to fraction form
    212,537.89/318,856.02 = 72,296.50/x
  3. Step 3: Cross multiply
    212,537.89x = 318,856.02 × 72,296.50
  4. Step 4: Simplify right side
    212,537.89x = 23,052,174,249.93
  5. Step 5: Solve for x
    x = 23,052,174,249.93/212,537.89
  6. Step 6: Final answer
    x = 108,461.48

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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.