Home / 278,425.42-384,227.28-151,100.98

Finding the Fourth Proportional to 278,425.42, 384,227.28 and 151,100.98

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Solution

The fourth proportional to 278,425.42, 384,227.28 and 151,100.98 is: 208,519.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,425.42 : 384,227.28 = 151,100.98 : x
  2. Step 2: Convert to fraction form
    278,425.42/384,227.28 = 151,100.98/x
  3. Step 3: Cross multiply
    278,425.42x = 384,227.28 × 151,100.98
  4. Step 4: Simplify right side
    278,425.42x = 58,057,118,550.73
  5. Step 5: Solve for x
    x = 58,057,118,550.73/278,425.42
  6. Step 6: Final answer
    x = 208,519.46

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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.