Home / 280,039.23-386,477.10-159,218.43

Finding the Fourth Proportional to 280,039.23, 386,477.10 and 159,218.43

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Solution

The fourth proportional to 280,039.23, 386,477.10 and 159,218.43 is: 219,734.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,039.23 : 386,477.10 = 159,218.43 : x
  2. Step 2: Convert to fraction form
    280,039.23/386,477.10 = 159,218.43/x
  3. Step 3: Cross multiply
    280,039.23x = 386,477.10 × 159,218.43
  4. Step 4: Simplify right side
    280,039.23x = 61,534,277,092.95
  5. Step 5: Solve for x
    x = 61,534,277,092.95/280,039.23
  6. Step 6: Final answer
    x = 219,734.49

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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.