Home / 221,063.65-331,355.55-145,130.33

Finding the Fourth Proportional to 221,063.65, 331,355.55 and 145,130.33

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Solution

The fourth proportional to 221,063.65, 331,355.55 and 145,130.33 is: 217,537.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,063.65 : 331,355.55 = 145,130.33 : x
  2. Step 2: Convert to fraction form
    221,063.65/331,355.55 = 145,130.33/x
  3. Step 3: Cross multiply
    221,063.65x = 331,355.55 × 145,130.33
  4. Step 4: Simplify right side
    221,063.65x = 48,089,740,318.83
  5. Step 5: Solve for x
    x = 48,089,740,318.83/221,063.65
  6. Step 6: Final answer
    x = 217,537.98

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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.