Home / 278,742.90-384,284.34-191,525.34

Finding the Fourth Proportional to 278,742.90, 384,284.34 and 191,525.34

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Solution

The fourth proportional to 278,742.90, 384,284.34 and 191,525.34 is: 264,043.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,742.90 : 384,284.34 = 191,525.34 : x
  2. Step 2: Convert to fraction form
    278,742.90/384,284.34 = 191,525.34/x
  3. Step 3: Cross multiply
    278,742.90x = 384,284.34 × 191,525.34
  4. Step 4: Simplify right side
    278,742.90x = 73,600,188,875.18
  5. Step 5: Solve for x
    x = 73,600,188,875.18/278,742.90
  6. Step 6: Final answer
    x = 264,043.28

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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.