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Finding the Fourth Proportional to 279,095.44, 385,140.07 and 158,244.89

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Solution

The fourth proportional to 279,095.44, 385,140.07 and 158,244.89 is: 218,371.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,095.44 : 385,140.07 = 158,244.89 : x
  2. Step 2: Convert to fraction form
    279,095.44/385,140.07 = 158,244.89/x
  3. Step 3: Cross multiply
    279,095.44x = 385,140.07 × 158,244.89
  4. Step 4: Simplify right side
    279,095.44x = 60,946,448,011.74
  5. Step 5: Solve for x
    x = 60,946,448,011.74/279,095.44
  6. Step 6: Final answer
    x = 218,371.35

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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.