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Finding the Fourth Proportional to 245,818.80, 368,290.80 and 210,826.80

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Solution

The fourth proportional to 245,818.80, 368,290.80 and 210,826.80 is: 315,865.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,818.80 : 368,290.80 = 210,826.80 : x
  2. Step 2: Convert to fraction form
    245,818.80/368,290.80 = 210,826.80/x
  3. Step 3: Cross multiply
    245,818.80x = 368,290.80 × 210,826.80
  4. Step 4: Simplify right side
    245,818.80x = 77,645,570,833.44
  5. Step 5: Solve for x
    x = 77,645,570,833.44/245,818.80
  6. Step 6: Final answer
    x = 315,865.06

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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.