Home / 245,310.42-368,108.38-103,145.40

Finding the Fourth Proportional to 245,310.42, 368,108.38 and 103,145.40

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Solution

The fourth proportional to 245,310.42, 368,108.38 and 103,145.40 is: 154,778.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,310.42 : 368,108.38 = 103,145.40 : x
  2. Step 2: Convert to fraction form
    245,310.42/368,108.38 = 103,145.40/x
  3. Step 3: Cross multiply
    245,310.42x = 368,108.38 × 103,145.40
  4. Step 4: Simplify right side
    245,310.42x = 37,968,686,227.38
  5. Step 5: Solve for x
    x = 37,968,686,227.38/245,310.42
  6. Step 6: Final answer
    x = 154,778.12

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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.