Home / 245,145.60-367,718.40-139,975.20

Finding the Fourth Proportional to 245,145.60, 367,718.40 and 139,975.20

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Solution

The fourth proportional to 245,145.60, 367,718.40 and 139,975.20 is: 209,962.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,145.60 : 367,718.40 = 139,975.20 : x
  2. Step 2: Convert to fraction form
    245,145.60/367,718.40 = 139,975.20/x
  3. Step 3: Cross multiply
    245,145.60x = 367,718.40 × 139,975.20
  4. Step 4: Simplify right side
    245,145.60x = 51,471,456,583.68
  5. Step 5: Solve for x
    x = 51,471,456,583.68/245,145.60
  6. Step 6: Final answer
    x = 209,962.80

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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.