Home / 278,840.32-384,802.07-151,515.90

Finding the Fourth Proportional to 278,840.32, 384,802.07 and 151,515.90

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Solution

The fourth proportional to 278,840.32, 384,802.07 and 151,515.90 is: 209,093.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,840.32 : 384,802.07 = 151,515.90 : x
  2. Step 2: Convert to fraction form
    278,840.32/384,802.07 = 151,515.90/x
  3. Step 3: Cross multiply
    278,840.32x = 384,802.07 × 151,515.90
  4. Step 4: Simplify right side
    278,840.32x = 58,303,631,200.33
  5. Step 5: Solve for x
    x = 58,303,631,200.33/278,840.32
  6. Step 6: Final answer
    x = 209,093.26

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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.