Home / 455,137.16-682,785.02-155,647.72

Finding the Fourth Proportional to 455,137.16, 682,785.02 and 155,647.72

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Solution

The fourth proportional to 455,137.16, 682,785.02 and 155,647.72 is: 233,498.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,137.16 : 682,785.02 = 155,647.72 : x
  2. Step 2: Convert to fraction form
    455,137.16/682,785.02 = 155,647.72/x
  3. Step 3: Cross multiply
    455,137.16x = 682,785.02 × 155,647.72
  4. Step 4: Simplify right side
    455,137.16x = 106,273,931,613.15
  5. Step 5: Solve for x
    x = 106,273,931,613.15/455,137.16
  6. Step 6: Final answer
    x = 233,498.69

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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.