Home / 260,299.05-390,545.78-102,637.41

Finding the Fourth Proportional to 260,299.05, 390,545.78 and 102,637.41

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Solution

The fourth proportional to 260,299.05, 390,545.78 and 102,637.41 is: 153,994.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,299.05 : 390,545.78 = 102,637.41 : x
  2. Step 2: Convert to fraction form
    260,299.05/390,545.78 = 102,637.41/x
  3. Step 3: Cross multiply
    260,299.05x = 390,545.78 × 102,637.41
  4. Step 4: Simplify right side
    260,299.05x = 40,084,606,832.44
  5. Step 5: Solve for x
    x = 40,084,606,832.44/260,299.05
  6. Step 6: Final answer
    x = 153,994.44

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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.