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Finding the Fourth Proportional to 245,086.16, 338,192.82 and 137,668.01

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Solution

The fourth proportional to 245,086.16, 338,192.82 and 137,668.01 is: 189,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,086.16 : 338,192.82 = 137,668.01 : x
  2. Step 2: Convert to fraction form
    245,086.16/338,192.82 = 137,668.01/x
  3. Step 3: Cross multiply
    245,086.16x = 338,192.82 × 137,668.01
  4. Step 4: Simplify right side
    245,086.16x = 46,558,330,834.72
  5. Step 5: Solve for x
    x = 46,558,330,834.72/245,086.16
  6. Step 6: Final answer
    x = 189,967.20

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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.