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Finding the Fourth Proportional to 254,690.91, 381,798.81 and 86,094

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Solution

The fourth proportional to 254,690.91, 381,798.81 and 86,094 is: 129,060.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,690.91 : 381,798.81 = 86,094 : x
  2. Step 2: Convert to fraction form
    254,690.91/381,798.81 = 86,094/x
  3. Step 3: Cross multiply
    254,690.91x = 381,798.81 × 86,094
  4. Step 4: Simplify right side
    254,690.91x = 32,870,586,748.14
  5. Step 5: Solve for x
    x = 32,870,586,748.14/254,690.91
  6. Step 6: Final answer
    x = 129,060.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.