Home / 217,918.38-300,743.76-133,051.84

Finding the Fourth Proportional to 217,918.38, 300,743.76 and 133,051.84

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Solution

The fourth proportional to 217,918.38, 300,743.76 and 133,051.84 is: 183,621.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,918.38 : 300,743.76 = 133,051.84 : x
  2. Step 2: Convert to fraction form
    217,918.38/300,743.76 = 133,051.84/x
  3. Step 3: Cross multiply
    217,918.38x = 300,743.76 × 133,051.84
  4. Step 4: Simplify right side
    217,918.38x = 40,014,510,636.52
  5. Step 5: Solve for x
    x = 40,014,510,636.52/217,918.38
  6. Step 6: Final answer
    x = 183,621.55

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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.