Home / 278,451.84-384,263.91-151,127.43

Finding the Fourth Proportional to 278,451.84, 384,263.91 and 151,127.43

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Solution

The fourth proportional to 278,451.84, 384,263.91 and 151,127.43 is: 208,556.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,451.84 : 384,263.91 = 151,127.43 : x
  2. Step 2: Convert to fraction form
    278,451.84/384,263.91 = 151,127.43/x
  3. Step 3: Cross multiply
    278,451.84x = 384,263.91 × 151,127.43
  4. Step 4: Simplify right side
    278,451.84x = 58,072,817,160.05
  5. Step 5: Solve for x
    x = 58,072,817,160.05/278,451.84
  6. Step 6: Final answer
    x = 208,556.05

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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.