Home / 317,686.18-476,456.64-189,638.50

Finding the Fourth Proportional to 317,686.18, 476,456.64 and 189,638.50

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Solution

The fourth proportional to 317,686.18, 476,456.64 and 189,638.50 is: 284,414.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,686.18 : 476,456.64 = 189,638.50 : x
  2. Step 2: Convert to fraction form
    317,686.18/476,456.64 = 189,638.50/x
  3. Step 3: Cross multiply
    317,686.18x = 476,456.64 × 189,638.50
  4. Step 4: Simplify right side
    317,686.18x = 90,354,522,524.64
  5. Step 5: Solve for x
    x = 90,354,522,524.64/317,686.18
  6. Step 6: Final answer
    x = 284,414.39

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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.