Home / 379,281.18-523,430.46-218,181.90

Finding the Fourth Proportional to 379,281.18, 523,430.46 and 218,181.90

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Solution

The fourth proportional to 379,281.18, 523,430.46 and 218,181.90 is: 301,103.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,281.18 : 523,430.46 = 218,181.90 : x
  2. Step 2: Convert to fraction form
    379,281.18/523,430.46 = 218,181.90/x
  3. Step 3: Cross multiply
    379,281.18x = 523,430.46 × 218,181.90
  4. Step 4: Simplify right side
    379,281.18x = 114,203,052,280.67
  5. Step 5: Solve for x
    x = 114,203,052,280.67/379,281.18
  6. Step 6: Final answer
    x = 301,103.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.