Home / 260,815.44-391,420.20-190,875.18

Finding the Fourth Proportional to 260,815.44, 391,420.20 and 190,875.18

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Solution

The fourth proportional to 260,815.44, 391,420.20 and 190,875.18 is: 286,456.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,815.44 : 391,420.20 = 190,875.18 : x
  2. Step 2: Convert to fraction form
    260,815.44/391,420.20 = 190,875.18/x
  3. Step 3: Cross multiply
    260,815.44x = 391,420.20 × 190,875.18
  4. Step 4: Simplify right side
    260,815.44x = 74,712,401,130.64
  5. Step 5: Solve for x
    x = 74,712,401,130.64/260,815.44
  6. Step 6: Final answer
    x = 286,456.97

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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.