Home / 278,528.72-384,369.60-151,204.31

Finding the Fourth Proportional to 278,528.72, 384,369.60 and 151,204.31

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Solution

The fourth proportional to 278,528.72, 384,369.60 and 151,204.31 is: 208,661.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,528.72 : 384,369.60 = 151,204.31 : x
  2. Step 2: Convert to fraction form
    278,528.72/384,369.60 = 151,204.31/x
  3. Step 3: Cross multiply
    278,528.72x = 384,369.60 × 151,204.31
  4. Step 4: Simplify right side
    278,528.72x = 58,118,338,231.13
  5. Step 5: Solve for x
    x = 58,118,338,231.13/278,528.72
  6. Step 6: Final answer
    x = 208,661.93

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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.