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Finding the Fourth Proportional to 255,995.85, 353,271.81 and 141,275.55

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Solution

The fourth proportional to 255,995.85, 353,271.81 and 141,275.55 is: 194,958.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,995.85 : 353,271.81 = 141,275.55 : x
  2. Step 2: Convert to fraction form
    255,995.85/353,271.81 = 141,275.55/x
  3. Step 3: Cross multiply
    255,995.85x = 353,271.81 × 141,275.55
  4. Step 4: Simplify right side
    255,995.85x = 49,908,669,257.25
  5. Step 5: Solve for x
    x = 49,908,669,257.25/255,995.85
  6. Step 6: Final answer
    x = 194,958.90

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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.