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Finding the Fourth Proportional to 255,968.48, 353,072.04 and 155,366.48

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Solution

The fourth proportional to 255,968.48, 353,072.04 and 155,366.48 is: 214,305.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,968.48 : 353,072.04 = 155,366.48 : x
  2. Step 2: Convert to fraction form
    255,968.48/353,072.04 = 155,366.48/x
  3. Step 3: Cross multiply
    255,968.48x = 353,072.04 × 155,366.48
  4. Step 4: Simplify right side
    255,968.48x = 54,855,560,041.22
  5. Step 5: Solve for x
    x = 54,855,560,041.22/255,968.48
  6. Step 6: Final answer
    x = 214,305.92

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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.