Home / 274,505.71-378,813.95-151,986.35

Finding the Fourth Proportional to 274,505.71, 378,813.95 and 151,986.35

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Solution

The fourth proportional to 274,505.71, 378,813.95 and 151,986.35 is: 209,738.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,505.71 : 378,813.95 = 151,986.35 : x
  2. Step 2: Convert to fraction form
    274,505.71/378,813.95 = 151,986.35/x
  3. Step 3: Cross multiply
    274,505.71x = 378,813.95 × 151,986.35
  4. Step 4: Simplify right side
    274,505.71x = 57,574,549,589.58
  5. Step 5: Solve for x
    x = 57,574,549,589.58/274,505.71
  6. Step 6: Final answer
    x = 209,738.99

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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.