Home / 278,507.22-384,200.19-187,748.34

Finding the Fourth Proportional to 278,507.22, 384,200.19 and 187,748.34

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Solution

The fourth proportional to 278,507.22, 384,200.19 and 187,748.34 is: 258,998.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,507.22 : 384,200.19 = 187,748.34 : x
  2. Step 2: Convert to fraction form
    278,507.22/384,200.19 = 187,748.34/x
  3. Step 3: Cross multiply
    278,507.22x = 384,200.19 × 187,748.34
  4. Step 4: Simplify right side
    278,507.22x = 72,132,947,900.18
  5. Step 5: Solve for x
    x = 72,132,947,900.18/278,507.22
  6. Step 6: Final answer
    x = 258,998.48

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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.