Home / 449,201.10-619,870.95-245,211.42

Finding the Fourth Proportional to 449,201.10, 619,870.95 and 245,211.42

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Solution

The fourth proportional to 449,201.10, 619,870.95 and 245,211.42 is: 338,377.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,201.10 : 619,870.95 = 245,211.42 : x
  2. Step 2: Convert to fraction form
    449,201.10/619,870.95 = 245,211.42/x
  3. Step 3: Cross multiply
    449,201.10x = 619,870.95 × 245,211.42
  4. Step 4: Simplify right side
    449,201.10x = 151,999,435,866.25
  5. Step 5: Solve for x
    x = 151,999,435,866.25/449,201.10
  6. Step 6: Final answer
    x = 338,377.26

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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.