Home / 278,875.05-384,846.51-158,039.34

Finding the Fourth Proportional to 278,875.05, 384,846.51 and 158,039.34

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Solution

The fourth proportional to 278,875.05, 384,846.51 and 158,039.34 is: 218,093.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,875.05 : 384,846.51 = 158,039.34 : x
  2. Step 2: Convert to fraction form
    278,875.05/384,846.51 = 158,039.34/x
  3. Step 3: Cross multiply
    278,875.05x = 384,846.51 × 158,039.34
  4. Step 4: Simplify right side
    278,875.05x = 60,820,888,441.70
  5. Step 5: Solve for x
    x = 60,820,888,441.70/278,875.05
  6. Step 6: Final answer
    x = 218,093.69

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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.