Home / 245,715.83-368,532.74-68,240.78

Finding the Fourth Proportional to 245,715.83, 368,532.74 and 68,240.78

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Solution

The fourth proportional to 245,715.83, 368,532.74 and 68,240.78 is: 102,349.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,715.83 : 368,532.74 = 68,240.78 : x
  2. Step 2: Convert to fraction form
    245,715.83/368,532.74 = 68,240.78/x
  3. Step 3: Cross multiply
    245,715.83x = 368,532.74 × 68,240.78
  4. Step 4: Simplify right side
    245,715.83x = 25,148,960,959.22
  5. Step 5: Solve for x
    x = 25,148,960,959.22/245,715.83
  6. Step 6: Final answer
    x = 102,349.78

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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.