Home / 286,839.03-430,242.12-109,363.98

Finding the Fourth Proportional to 286,839.03, 430,242.12 and 109,363.98

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Solution

The fourth proportional to 286,839.03, 430,242.12 and 109,363.98 is: 164,039.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,839.03 : 430,242.12 = 109,363.98 : x
  2. Step 2: Convert to fraction form
    286,839.03/430,242.12 = 109,363.98/x
  3. Step 3: Cross multiply
    286,839.03x = 430,242.12 × 109,363.98
  4. Step 4: Simplify right side
    286,839.03x = 47,052,990,606.84
  5. Step 5: Solve for x
    x = 47,052,990,606.84/286,839.03
  6. Step 6: Final answer
    x = 164,039.71

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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.