Home / 278,401.30-384,189.66-163,692.88

Finding the Fourth Proportional to 278,401.30, 384,189.66 and 163,692.88

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Solution

The fourth proportional to 278,401.30, 384,189.66 and 163,692.88 is: 225,893.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,401.30 : 384,189.66 = 163,692.88 : x
  2. Step 2: Convert to fraction form
    278,401.30/384,189.66 = 163,692.88/x
  3. Step 3: Cross multiply
    278,401.30x = 384,189.66 × 163,692.88
  4. Step 4: Simplify right side
    278,401.30x = 62,889,111,911.62
  5. Step 5: Solve for x
    x = 62,889,111,911.62/278,401.30
  6. Step 6: Final answer
    x = 225,893.74

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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.