Home / 278,489.06-384,304.59-151,161.92

Finding the Fourth Proportional to 278,489.06, 384,304.59 and 151,161.92

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Solution

The fourth proportional to 278,489.06, 384,304.59 and 151,161.92 is: 208,597.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,489.06 : 384,304.59 = 151,161.92 : x
  2. Step 2: Convert to fraction form
    278,489.06/384,304.59 = 151,161.92/x
  3. Step 3: Cross multiply
    278,489.06x = 384,304.59 × 151,161.92
  4. Step 4: Simplify right side
    278,489.06x = 58,092,219,689.21
  5. Step 5: Solve for x
    x = 58,092,219,689.21/278,489.06
  6. Step 6: Final answer
    x = 208,597.85

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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.