Home / 278,929.19-384,924.83-151,605.09

Finding the Fourth Proportional to 278,929.19, 384,924.83 and 151,605.09

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Solution

The fourth proportional to 278,929.19, 384,924.83 and 151,605.09 is: 209,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,929.19 : 384,924.83 = 151,605.09 : x
  2. Step 2: Convert to fraction form
    278,929.19/384,924.83 = 151,605.09/x
  3. Step 3: Cross multiply
    278,929.19x = 384,924.83 × 151,605.09
  4. Step 4: Simplify right side
    278,929.19x = 58,356,562,737.36
  5. Step 5: Solve for x
    x = 58,356,562,737.36/278,929.19
  6. Step 6: Final answer
    x = 209,216.40

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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.