Home / 278,700.05-384,667.44-183,215.63

Finding the Fourth Proportional to 278,700.05, 384,667.44 and 183,215.63

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Solution

The fourth proportional to 278,700.05, 384,667.44 and 183,215.63 is: 252,877.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,700.05 : 384,667.44 = 183,215.63 : x
  2. Step 2: Convert to fraction form
    278,700.05/384,667.44 = 183,215.63/x
  3. Step 3: Cross multiply
    278,700.05x = 384,667.44 × 183,215.63
  4. Step 4: Simplify right side
    278,700.05x = 70,477,087,360.09
  5. Step 5: Solve for x
    x = 70,477,087,360.09/278,700.05
  6. Step 6: Final answer
    x = 252,877.91

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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.