Home / 455,506.20-683,291.70-139,962.60

Finding the Fourth Proportional to 455,506.20, 683,291.70 and 139,962.60

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Solution

The fourth proportional to 455,506.20, 683,291.70 and 139,962.60 is: 209,953.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,506.20 : 683,291.70 = 139,962.60 : x
  2. Step 2: Convert to fraction form
    455,506.20/683,291.70 = 139,962.60/x
  3. Step 3: Cross multiply
    455,506.20x = 683,291.70 × 139,962.60
  4. Step 4: Simplify right side
    455,506.20x = 95,635,282,890.42
  5. Step 5: Solve for x
    x = 95,635,282,890.42/455,506.20
  6. Step 6: Final answer
    x = 209,953.86

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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.