Home / 278,452.58-384,264.84-151,128.23

Finding the Fourth Proportional to 278,452.58, 384,264.84 and 151,128.23

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Solution

The fourth proportional to 278,452.58, 384,264.84 and 151,128.23 is: 208,557.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,452.58 : 384,264.84 = 151,128.23 : x
  2. Step 2: Convert to fraction form
    278,452.58/384,264.84 = 151,128.23/x
  3. Step 3: Cross multiply
    278,452.58x = 384,264.84 × 151,128.23
  4. Step 4: Simplify right side
    278,452.58x = 58,073,265,120.43
  5. Step 5: Solve for x
    x = 58,073,265,120.43/278,452.58
  6. Step 6: Final answer
    x = 208,557.11

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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.