Home / 278,451.57-384,263.34-151,127.17

Finding the Fourth Proportional to 278,451.57, 384,263.34 and 151,127.17

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Solution

The fourth proportional to 278,451.57, 384,263.34 and 151,127.17 is: 208,555.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,451.57 : 384,263.34 = 151,127.17 : x
  2. Step 2: Convert to fraction form
    278,451.57/384,263.34 = 151,127.17/x
  3. Step 3: Cross multiply
    278,451.57x = 384,263.34 × 151,127.17
  4. Step 4: Simplify right side
    278,451.57x = 58,072,630,431.65
  5. Step 5: Solve for x
    x = 58,072,630,431.65/278,451.57
  6. Step 6: Final answer
    x = 208,555.58

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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.