Home / 285,666.41-428,639.87-114,881.22

Finding the Fourth Proportional to 285,666.41, 428,639.87 and 114,881.22

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Solution

The fourth proportional to 285,666.41, 428,639.87 and 114,881.22 is: 172,378.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,666.41 : 428,639.87 = 114,881.22 : x
  2. Step 2: Convert to fraction form
    285,666.41/428,639.87 = 114,881.22/x
  3. Step 3: Cross multiply
    285,666.41x = 428,639.87 × 114,881.22
  4. Step 4: Simplify right side
    285,666.41x = 49,242,670,847.24
  5. Step 5: Solve for x
    x = 49,242,670,847.24/285,666.41
  6. Step 6: Final answer
    x = 172,378.23

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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.