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Finding the Fourth Proportional to 193,670.65, 290,494.70 and 87,027.06

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Solution

The fourth proportional to 193,670.65, 290,494.70 and 87,027.06 is: 130,535.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,670.65 : 290,494.70 = 87,027.06 : x
  2. Step 2: Convert to fraction form
    193,670.65/290,494.70 = 87,027.06/x
  3. Step 3: Cross multiply
    193,670.65x = 290,494.70 × 87,027.06
  4. Step 4: Simplify right side
    193,670.65x = 25,280,899,686.58
  5. Step 5: Solve for x
    x = 25,280,899,686.58/193,670.65
  6. Step 6: Final answer
    x = 130,535.52

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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.