Home / 286,831.77-430,231.24-109,356.72

Finding the Fourth Proportional to 286,831.77, 430,231.24 and 109,356.72

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Solution

The fourth proportional to 286,831.77, 430,231.24 and 109,356.72 is: 164,028.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,831.77 : 430,231.24 = 109,356.72 : x
  2. Step 2: Convert to fraction form
    286,831.77/430,231.24 = 109,356.72/x
  3. Step 3: Cross multiply
    286,831.77x = 430,231.24 × 109,356.72
  4. Step 4: Simplify right side
    286,831.77x = 47,048,677,247.93
  5. Step 5: Solve for x
    x = 47,048,677,247.93/286,831.77
  6. Step 6: Final answer
    x = 164,028.82

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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.