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Finding the Fourth Proportional to 255,990.35, 353,264.22 and 141,270.05

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Solution

The fourth proportional to 255,990.35, 353,264.22 and 141,270.05 is: 194,951.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,990.35 : 353,264.22 = 141,270.05 : x
  2. Step 2: Convert to fraction form
    255,990.35/353,264.22 = 141,270.05/x
  3. Step 3: Cross multiply
    255,990.35x = 353,264.22 × 141,270.05
  4. Step 4: Simplify right side
    255,990.35x = 49,905,654,905.77
  5. Step 5: Solve for x
    x = 49,905,654,905.77/255,990.35
  6. Step 6: Final answer
    x = 194,951.31

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1.5x scale

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.