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Finding the Fourth Proportional to 245,112.40, 367,668.60 and 243,362.80

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Solution

The fourth proportional to 245,112.40, 367,668.60 and 243,362.80 is: 365,044.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,112.40 : 367,668.60 = 243,362.80 : x
  2. Step 2: Convert to fraction form
    245,112.40/367,668.60 = 243,362.80/x
  3. Step 3: Cross multiply
    245,112.40x = 367,668.60 × 243,362.80
  4. Step 4: Simplify right side
    245,112.40x = 89,476,859,968.08
  5. Step 5: Solve for x
    x = 89,476,859,968.08/245,112.40
  6. Step 6: Final answer
    x = 365,044.20

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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.