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Finding the Fourth Proportional to 280,850.54, 387,571.77 and 153,526.44

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Solution

The fourth proportional to 280,850.54, 387,571.77 and 153,526.44 is: 211,865.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,850.54 : 387,571.77 = 153,526.44 : x
  2. Step 2: Convert to fraction form
    280,850.54/387,571.77 = 153,526.44/x
  3. Step 3: Cross multiply
    280,850.54x = 387,571.77 × 153,526.44
  4. Step 4: Simplify right side
    280,850.54x = 59,502,514,092.60
  5. Step 5: Solve for x
    x = 59,502,514,092.60/280,850.54
  6. Step 6: Final answer
    x = 211,865.41

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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.