Home / 279,166.12-385,214.34-188,718.82

Finding the Fourth Proportional to 279,166.12, 385,214.34 and 188,718.82

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Solution

The fourth proportional to 279,166.12, 385,214.34 and 188,718.82 is: 260,408.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,166.12 : 385,214.34 = 188,718.82 : x
  2. Step 2: Convert to fraction form
    279,166.12/385,214.34 = 188,718.82/x
  3. Step 3: Cross multiply
    279,166.12x = 385,214.34 × 188,718.82
  4. Step 4: Simplify right side
    279,166.12x = 72,697,195,691.88
  5. Step 5: Solve for x
    x = 72,697,195,691.88/279,166.12
  6. Step 6: Final answer
    x = 260,408.38

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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.