Home / 280,355.33-386,876.83-159,485.24

Finding the Fourth Proportional to 280,355.33, 386,876.83 and 159,485.24

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Solution

The fourth proportional to 280,355.33, 386,876.83 and 159,485.24 is: 220,081.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,355.33 : 386,876.83 = 159,485.24 : x
  2. Step 2: Convert to fraction form
    280,355.33/386,876.83 = 159,485.24/x
  3. Step 3: Cross multiply
    280,355.33x = 386,876.83 × 159,485.24
  4. Step 4: Simplify right side
    280,355.33x = 61,701,144,082.99
  5. Step 5: Solve for x
    x = 61,701,144,082.99/280,355.33
  6. Step 6: Final answer
    x = 220,081.94

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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.