Home / 208,914.91-288,016.94-143,501.74

Finding the Fourth Proportional to 208,914.91, 288,016.94 and 143,501.74

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Solution

The fourth proportional to 208,914.91, 288,016.94 and 143,501.74 is: 197,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,914.91 : 288,016.94 = 143,501.74 : x
  2. Step 2: Convert to fraction form
    208,914.91/288,016.94 = 143,501.74/x
  3. Step 3: Cross multiply
    208,914.91x = 288,016.94 × 143,501.74
  4. Step 4: Simplify right side
    208,914.91x = 41,330,932,039.48
  5. Step 5: Solve for x
    x = 41,330,932,039.48/208,914.91
  6. Step 6: Final answer
    x = 197,836.20

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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.