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Finding the Fourth Proportional to 319,594.75, 479,575.28 and 130,020.12

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Solution

The fourth proportional to 319,594.75, 479,575.28 and 130,020.12 is: 195,104.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,594.75 : 479,575.28 = 130,020.12 : x
  2. Step 2: Convert to fraction form
    319,594.75/479,575.28 = 130,020.12/x
  3. Step 3: Cross multiply
    319,594.75x = 479,575.28 × 130,020.12
  4. Step 4: Simplify right side
    319,594.75x = 62,354,435,779.68
  5. Step 5: Solve for x
    x = 62,354,435,779.68/319,594.75
  6. Step 6: Final answer
    x = 195,104.70

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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.