Home / 278,412.39-384,209.34-151,087.98

Finding the Fourth Proportional to 278,412.39, 384,209.34 and 151,087.98

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Solution

The fourth proportional to 278,412.39, 384,209.34 and 151,087.98 is: 208,501.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,412.39 : 384,209.34 = 151,087.98 : x
  2. Step 2: Convert to fraction form
    278,412.39/384,209.34 = 151,087.98/x
  3. Step 3: Cross multiply
    278,412.39x = 384,209.34 × 151,087.98
  4. Step 4: Simplify right side
    278,412.39x = 58,049,413,077.73
  5. Step 5: Solve for x
    x = 58,049,413,077.73/278,412.39
  6. Step 6: Final answer
    x = 208,501.54

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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.