Home / 278,890.83-384,869.14-151,566.39

Finding the Fourth Proportional to 278,890.83, 384,869.14 and 151,566.39

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Solution

The fourth proportional to 278,890.83, 384,869.14 and 151,566.39 is: 209,161.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,890.83 : 384,869.14 = 151,566.39 : x
  2. Step 2: Convert to fraction form
    278,890.83/384,869.14 = 151,566.39/x
  3. Step 3: Cross multiply
    278,890.83x = 384,869.14 × 151,566.39
  4. Step 4: Simplify right side
    278,890.83x = 58,333,225,793.29
  5. Step 5: Solve for x
    x = 58,333,225,793.29/278,890.83
  6. Step 6: Final answer
    x = 209,161.51

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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.