Home / 211,938.56-318,038.88-123,233.60

Finding the Fourth Proportional to 211,938.56, 318,038.88 and 123,233.60

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Solution

The fourth proportional to 211,938.56, 318,038.88 and 123,233.60 is: 184,926.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,938.56 : 318,038.88 = 123,233.60 : x
  2. Step 2: Convert to fraction form
    211,938.56/318,038.88 = 123,233.60/x
  3. Step 3: Cross multiply
    211,938.56x = 318,038.88 × 123,233.60
  4. Step 4: Simplify right side
    211,938.56x = 39,193,076,122.37
  5. Step 5: Solve for x
    x = 39,193,076,122.37/211,938.56
  6. Step 6: Final answer
    x = 184,926.59

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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.