Home / 198,925.80-298,388.70-190,287.15

Finding the Fourth Proportional to 198,925.80, 298,388.70 and 190,287.15

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Solution

The fourth proportional to 198,925.80, 298,388.70 and 190,287.15 is: 285,430.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,925.80 : 298,388.70 = 190,287.15 : x
  2. Step 2: Convert to fraction form
    198,925.80/298,388.70 = 190,287.15/x
  3. Step 3: Cross multiply
    198,925.80x = 298,388.70 × 190,287.15
  4. Step 4: Simplify right side
    198,925.80x = 56,779,535,315.21
  5. Step 5: Solve for x
    x = 56,779,535,315.21/198,925.80
  6. Step 6: Final answer
    x = 285,430.73

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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.