Home / 278,451.90-384,261.30-151,127.46

Finding the Fourth Proportional to 278,451.90, 384,261.30 and 151,127.46

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Solution

The fourth proportional to 278,451.90, 384,261.30 and 151,127.46 is: 208,554.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,451.90 : 384,261.30 = 151,127.46 : x
  2. Step 2: Convert to fraction form
    278,451.90/384,261.30 = 151,127.46/x
  3. Step 3: Cross multiply
    278,451.90x = 384,261.30 × 151,127.46
  4. Step 4: Simplify right side
    278,451.90x = 58,072,434,245.30
  5. Step 5: Solve for x
    x = 58,072,434,245.30/278,451.90
  6. Step 6: Final answer
    x = 208,554.63

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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.