Home / 253,831.03-380,648.13-135,437.79

Finding the Fourth Proportional to 253,831.03, 380,648.13 and 135,437.79

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Solution

The fourth proportional to 253,831.03, 380,648.13 and 135,437.79 is: 203,104.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,831.03 : 380,648.13 = 135,437.79 : x
  2. Step 2: Convert to fraction form
    253,831.03/380,648.13 = 135,437.79/x
  3. Step 3: Cross multiply
    253,831.03x = 380,648.13 × 135,437.79
  4. Step 4: Simplify right side
    253,831.03x = 51,554,140,273.23
  5. Step 5: Solve for x
    x = 51,554,140,273.23/253,831.03
  6. Step 6: Final answer
    x = 203,104.17

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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.