Home / 516,748.40-775,137.72-142,771.76

Finding the Fourth Proportional to 516,748.40, 775,137.72 and 142,771.76

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Solution

The fourth proportional to 516,748.40, 775,137.72 and 142,771.76 is: 214,161.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,748.40 : 775,137.72 = 142,771.76 : x
  2. Step 2: Convert to fraction form
    516,748.40/775,137.72 = 142,771.76/x
  3. Step 3: Cross multiply
    516,748.40x = 775,137.72 × 142,771.76
  4. Step 4: Simplify right side
    516,748.40x = 110,667,776,526.79
  5. Step 5: Solve for x
    x = 110,667,776,526.79/516,748.40
  6. Step 6: Final answer
    x = 214,161.82

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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.