Home / 278,452.84-384,265.30-151,128.44

Finding the Fourth Proportional to 278,452.84, 384,265.30 and 151,128.44

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Solution

The fourth proportional to 278,452.84, 384,265.30 and 151,128.44 is: 208,557.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,452.84 : 384,265.30 = 151,128.44 : x
  2. Step 2: Convert to fraction form
    278,452.84/384,265.30 = 151,128.44/x
  3. Step 3: Cross multiply
    278,452.84x = 384,265.30 × 151,128.44
  4. Step 4: Simplify right side
    278,452.84x = 58,073,415,335.13
  5. Step 5: Solve for x
    x = 58,073,415,335.13/278,452.84
  6. Step 6: Final answer
    x = 208,557.45

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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.