Home / 260,356.27-390,382.66-127,101.55

Finding the Fourth Proportional to 260,356.27, 390,382.66 and 127,101.55

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Solution

The fourth proportional to 260,356.27, 390,382.66 and 127,101.55 is: 190,578.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,356.27 : 390,382.66 = 127,101.55 : x
  2. Step 2: Convert to fraction form
    260,356.27/390,382.66 = 127,101.55/x
  3. Step 3: Cross multiply
    260,356.27x = 390,382.66 × 127,101.55
  4. Step 4: Simplify right side
    260,356.27x = 49,618,241,179.12
  5. Step 5: Solve for x
    x = 49,618,241,179.12/260,356.27
  6. Step 6: Final answer
    x = 190,578.25

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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.