Home / 329,133.12-493,698-79,815.12

Finding the Fourth Proportional to 329,133.12, 493,698 and 79,815.12

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Solution

The fourth proportional to 329,133.12, 493,698 and 79,815.12 is: 119,722.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,133.12 : 493,698 = 79,815.12 : x
  2. Step 2: Convert to fraction form
    329,133.12/493,698 = 79,815.12/x
  3. Step 3: Cross multiply
    329,133.12x = 493,698 × 79,815.12
  4. Step 4: Simplify right side
    329,133.12x = 39,404,565,113.76
  5. Step 5: Solve for x
    x = 39,404,565,113.76/329,133.12
  6. Step 6: Final answer
    x = 119,722.27

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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.