Home / 280,855.14-387,577.62-153,530.34

Finding the Fourth Proportional to 280,855.14, 387,577.62 and 153,530.34

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Solution

The fourth proportional to 280,855.14, 387,577.62 and 153,530.34 is: 211,870.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,855.14 : 387,577.62 = 153,530.34 : x
  2. Step 2: Convert to fraction form
    280,855.14/387,577.62 = 153,530.34/x
  3. Step 3: Cross multiply
    280,855.14x = 387,577.62 × 153,530.34
  4. Step 4: Simplify right side
    280,855.14x = 59,504,923,774.99
  5. Step 5: Solve for x
    x = 59,504,923,774.99/280,855.14
  6. Step 6: Final answer
    x = 211,870.52

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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.