Home / 278,890.62-384,868.89-151,566.24

Finding the Fourth Proportional to 278,890.62, 384,868.89 and 151,566.24

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Solution

The fourth proportional to 278,890.62, 384,868.89 and 151,566.24 is: 209,161.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,890.62 : 384,868.89 = 151,566.24 : x
  2. Step 2: Convert to fraction form
    278,890.62/384,868.89 = 151,566.24/x
  3. Step 3: Cross multiply
    278,890.62x = 384,868.89 × 151,566.24
  4. Step 4: Simplify right side
    278,890.62x = 58,333,130,550.27
  5. Step 5: Solve for x
    x = 58,333,130,550.27/278,890.62
  6. Step 6: Final answer
    x = 209,161.32

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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.