Home / 421,146.95-581,181.50-230,160.35

Finding the Fourth Proportional to 421,146.95, 581,181.50 and 230,160.35

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Solution

The fourth proportional to 421,146.95, 581,181.50 and 230,160.35 is: 317,620.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,146.95 : 581,181.50 = 230,160.35 : x
  2. Step 2: Convert to fraction form
    421,146.95/581,181.50 = 230,160.35/x
  3. Step 3: Cross multiply
    421,146.95x = 581,181.50 × 230,160.35
  4. Step 4: Simplify right side
    421,146.95x = 133,764,939,481.88
  5. Step 5: Solve for x
    x = 133,764,939,481.88/421,146.95
  6. Step 6: Final answer
    x = 317,620.59

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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.