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Finding the Fourth Proportional to 486,151, 670,888.52 and 268,359.80

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Solution

The fourth proportional to 486,151, 670,888.52 and 268,359.80 is: 370,336.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,151 : 670,888.52 = 268,359.80 : x
  2. Step 2: Convert to fraction form
    486,151/670,888.52 = 268,359.80/x
  3. Step 3: Cross multiply
    486,151x = 670,888.52 × 268,359.80
  4. Step 4: Simplify right side
    486,151x = 180,039,509,049.50
  5. Step 5: Solve for x
    x = 180,039,509,049.50/486,151
  6. Step 6: Final answer
    x = 370,336.60

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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.