Home / 485,986.48-670,651.95-268,215.64

Finding the Fourth Proportional to 485,986.48, 670,651.95 and 268,215.64

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Solution

The fourth proportional to 485,986.48, 670,651.95 and 268,215.64 is: 370,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,986.48 : 670,651.95 = 268,215.64 : x
  2. Step 2: Convert to fraction form
    485,986.48/670,651.95 = 268,215.64/x
  3. Step 3: Cross multiply
    485,986.48x = 670,651.95 × 268,215.64
  4. Step 4: Simplify right side
    485,986.48x = 179,879,341,986.50
  5. Step 5: Solve for x
    x = 179,879,341,986.50/485,986.48
  6. Step 6: Final answer
    x = 370,132.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.