Home / 455,238.60-628,226.19-248,506.15

Finding the Fourth Proportional to 455,238.60, 628,226.19 and 248,506.15

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Solution

The fourth proportional to 455,238.60, 628,226.19 and 248,506.15 is: 342,936.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,238.60 : 628,226.19 = 248,506.15 : x
  2. Step 2: Convert to fraction form
    455,238.60/628,226.19 = 248,506.15/x
  3. Step 3: Cross multiply
    455,238.60x = 628,226.19 × 248,506.15
  4. Step 4: Simplify right side
    455,238.60x = 156,118,071,806.07
  5. Step 5: Solve for x
    x = 156,118,071,806.07/455,238.60
  6. Step 6: Final answer
    x = 342,936.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.