Home / 245,999.20-369,008.50-68,521.72

Finding the Fourth Proportional to 245,999.20, 369,008.50 and 68,521.72

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Solution

The fourth proportional to 245,999.20, 369,008.50 and 68,521.72 is: 102,785.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,999.20 : 369,008.50 = 68,521.72 : x
  2. Step 2: Convert to fraction form
    245,999.20/369,008.50 = 68,521.72/x
  3. Step 3: Cross multiply
    245,999.20x = 369,008.50 × 68,521.72
  4. Step 4: Simplify right side
    245,999.20x = 25,285,097,114.62
  5. Step 5: Solve for x
    x = 25,285,097,114.62/245,999.20
  6. Step 6: Final answer
    x = 102,785.28

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1.5x scale

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.