Home / 211,339.62-317,113.61-99,000.42

Finding the Fourth Proportional to 211,339.62, 317,113.61 and 99,000.42

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Solution

The fourth proportional to 211,339.62, 317,113.61 and 99,000.42 is: 148,549.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,339.62 : 317,113.61 = 99,000.42 : x
  2. Step 2: Convert to fraction form
    211,339.62/317,113.61 = 99,000.42/x
  3. Step 3: Cross multiply
    211,339.62x = 317,113.61 × 99,000.42
  4. Step 4: Simplify right side
    211,339.62x = 31,394,380,577.72
  5. Step 5: Solve for x
    x = 31,394,380,577.72/211,339.62
  6. Step 6: Final answer
    x = 148,549.43

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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.