Home / 215,315.60-322,973.40-136,518.80

Finding the Fourth Proportional to 215,315.60, 322,973.40 and 136,518.80

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Solution

The fourth proportional to 215,315.60, 322,973.40 and 136,518.80 is: 204,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,315.60 : 322,973.40 = 136,518.80 : x
  2. Step 2: Convert to fraction form
    215,315.60/322,973.40 = 136,518.80/x
  3. Step 3: Cross multiply
    215,315.60x = 322,973.40 × 136,518.80
  4. Step 4: Simplify right side
    215,315.60x = 44,091,940,999.92
  5. Step 5: Solve for x
    x = 44,091,940,999.92/215,315.60
  6. Step 6: Final answer
    x = 204,778.20

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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.