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Finding the Fourth Proportional to 260,828, 390,603.92 and 235,584.24

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Solution

The fourth proportional to 260,828, 390,603.92 and 235,584.24 is: 352,800.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,828 : 390,603.92 = 235,584.24 : x
  2. Step 2: Convert to fraction form
    260,828/390,603.92 = 235,584.24/x
  3. Step 3: Cross multiply
    260,828x = 390,603.92 × 235,584.24
  4. Step 4: Simplify right side
    260,828x = 92,020,127,634.22
  5. Step 5: Solve for x
    x = 92,020,127,634.22/260,828
  6. Step 6: Final answer
    x = 352,800.04

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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.