Home / 280,735.44-387,433.32-158,258.04

Finding the Fourth Proportional to 280,735.44, 387,433.32 and 158,258.04

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Solution

The fourth proportional to 280,735.44, 387,433.32 and 158,258.04 is: 218,406.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,735.44 : 387,433.32 = 158,258.04 : x
  2. Step 2: Convert to fraction form
    280,735.44/387,433.32 = 158,258.04/x
  3. Step 3: Cross multiply
    280,735.44x = 387,433.32 × 158,258.04
  4. Step 4: Simplify right side
    280,735.44x = 61,314,437,853.89
  5. Step 5: Solve for x
    x = 61,314,437,853.89/280,735.44
  6. Step 6: Final answer
    x = 218,406.47

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1.5x scale

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.