Home / 357,958.40-493,984.55-210,789.68

Finding the Fourth Proportional to 357,958.40, 493,984.55 and 210,789.68

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Solution

The fourth proportional to 357,958.40, 493,984.55 and 210,789.68 is: 290,890.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,958.40 : 493,984.55 = 210,789.68 : x
  2. Step 2: Convert to fraction form
    357,958.40/493,984.55 = 210,789.68/x
  3. Step 3: Cross multiply
    357,958.40x = 493,984.55 × 210,789.68
  4. Step 4: Simplify right side
    357,958.40x = 104,126,844,165.50
  5. Step 5: Solve for x
    x = 104,126,844,165.50/357,958.40
  6. Step 6: Final answer
    x = 290,890.91

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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.