Home / 253,921.60-380,729.28-134,074

Finding the Fourth Proportional to 253,921.60, 380,729.28 and 134,074

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Solution

The fourth proportional to 253,921.60, 380,729.28 and 134,074 is: 201,030.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,921.60 : 380,729.28 = 134,074 : x
  2. Step 2: Convert to fraction form
    253,921.60/380,729.28 = 134,074/x
  3. Step 3: Cross multiply
    253,921.60x = 380,729.28 × 134,074
  4. Step 4: Simplify right side
    253,921.60x = 51,045,897,486.72
  5. Step 5: Solve for x
    x = 51,045,897,486.72/253,921.60
  6. Step 6: Final answer
    x = 201,030.15

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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.