Home / 280,561.85-387,175.36-153,237.75

Finding the Fourth Proportional to 280,561.85, 387,175.36 and 153,237.75

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Solution

The fourth proportional to 280,561.85, 387,175.36 and 153,237.75 is: 211,468.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,561.85 : 387,175.36 = 153,237.75 : x
  2. Step 2: Convert to fraction form
    280,561.85/387,175.36 = 153,237.75/x
  3. Step 3: Cross multiply
    280,561.85x = 387,175.36 × 153,237.75
  4. Step 4: Simplify right side
    280,561.85x = 59,329,879,916.62
  5. Step 5: Solve for x
    x = 59,329,879,916.62/280,561.85
  6. Step 6: Final answer
    x = 211,468.09

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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.