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Finding the Fourth Proportional to 259,951.08, 390,050.58 and 141,619.80

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Solution

The fourth proportional to 259,951.08, 390,050.58 and 141,619.80 is: 212,497.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,951.08 : 390,050.58 = 141,619.80 : x
  2. Step 2: Convert to fraction form
    259,951.08/390,050.58 = 141,619.80/x
  3. Step 3: Cross multiply
    259,951.08x = 390,050.58 × 141,619.80
  4. Step 4: Simplify right side
    259,951.08x = 55,238,885,129.48
  5. Step 5: Solve for x
    x = 55,238,885,129.48/259,951.08
  6. Step 6: Final answer
    x = 212,497.23

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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.