Home / 300,831.18-415,146.87-179,977.38

Finding the Fourth Proportional to 300,831.18, 415,146.87 and 179,977.38

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Solution

The fourth proportional to 300,831.18, 415,146.87 and 179,977.38 is: 248,368.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,831.18 : 415,146.87 = 179,977.38 : x
  2. Step 2: Convert to fraction form
    300,831.18/415,146.87 = 179,977.38/x
  3. Step 3: Cross multiply
    300,831.18x = 415,146.87 × 179,977.38
  4. Step 4: Simplify right side
    300,831.18x = 74,717,045,977.80
  5. Step 5: Solve for x
    x = 74,717,045,977.80/300,831.18
  6. Step 6: Final answer
    x = 248,368.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.