Home / 328,918.86-493,575.09-141,930.36

Finding the Fourth Proportional to 328,918.86, 493,575.09 and 141,930.36

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Solution

The fourth proportional to 328,918.86, 493,575.09 and 141,930.36 is: 212,980.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,918.86 : 493,575.09 = 141,930.36 : x
  2. Step 2: Convert to fraction form
    328,918.86/493,575.09 = 141,930.36/x
  3. Step 3: Cross multiply
    328,918.86x = 493,575.09 × 141,930.36
  4. Step 4: Simplify right side
    328,918.86x = 70,053,290,210.73
  5. Step 5: Solve for x
    x = 70,053,290,210.73/328,918.86
  6. Step 6: Final answer
    x = 212,980.46

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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.