Home / 276,765.40-415,148.10-191,144.35

Finding the Fourth Proportional to 276,765.40, 415,148.10 and 191,144.35

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Solution

The fourth proportional to 276,765.40, 415,148.10 and 191,144.35 is: 286,716.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,765.40 : 415,148.10 = 191,144.35 : x
  2. Step 2: Convert to fraction form
    276,765.40/415,148.10 = 191,144.35/x
  3. Step 3: Cross multiply
    276,765.40x = 415,148.10 × 191,144.35
  4. Step 4: Simplify right side
    276,765.40x = 79,353,213,728.24
  5. Step 5: Solve for x
    x = 79,353,213,728.24/276,765.40
  6. Step 6: Final answer
    x = 286,716.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.