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Finding the Fourth Proportional to 263,754.40, 363,980.56 and 142,898.70

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Solution

The fourth proportional to 263,754.40, 363,980.56 and 142,898.70 is: 197,199.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,754.40 : 363,980.56 = 142,898.70 : x
  2. Step 2: Convert to fraction form
    263,754.40/363,980.56 = 142,898.70/x
  3. Step 3: Cross multiply
    263,754.40x = 363,980.56 × 142,898.70
  4. Step 4: Simplify right side
    263,754.40x = 52,012,348,849.27
  5. Step 5: Solve for x
    x = 52,012,348,849.27/263,754.40
  6. Step 6: Final answer
    x = 197,199.93

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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.