Home / 253,784.02-380,848.29-135,540.22

Finding the Fourth Proportional to 253,784.02, 380,848.29 and 135,540.22

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Solution

The fourth proportional to 253,784.02, 380,848.29 and 135,540.22 is: 203,402.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,784.02 : 380,848.29 = 135,540.22 : x
  2. Step 2: Convert to fraction form
    253,784.02/380,848.29 = 135,540.22/x
  3. Step 3: Cross multiply
    253,784.02x = 380,848.29 × 135,540.22
  4. Step 4: Simplify right side
    253,784.02x = 51,620,261,013.22
  5. Step 5: Solve for x
    x = 51,620,261,013.22/253,784.02
  6. Step 6: Final answer
    x = 203,402.33

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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.