Home / 278,911.59-384,898.04-151,587.18

Finding the Fourth Proportional to 278,911.59, 384,898.04 and 151,587.18

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Solution

The fourth proportional to 278,911.59, 384,898.04 and 151,587.18 is: 209,190.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,911.59 : 384,898.04 = 151,587.18 : x
  2. Step 2: Convert to fraction form
    278,911.59/384,898.04 = 151,587.18/x
  3. Step 3: Cross multiply
    278,911.59x = 384,898.04 × 151,587.18
  4. Step 4: Simplify right side
    278,911.59x = 58,345,608,471.13
  5. Step 5: Solve for x
    x = 58,345,608,471.13/278,911.59
  6. Step 6: Final answer
    x = 209,190.33

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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.