Home / 347,582.21-521,456.55-145,065.71

Finding the Fourth Proportional to 347,582.21, 521,456.55 and 145,065.71

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Solution

The fourth proportional to 347,582.21, 521,456.55 and 145,065.71 is: 217,633.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,582.21 : 521,456.55 = 145,065.71 : x
  2. Step 2: Convert to fraction form
    347,582.21/521,456.55 = 145,065.71/x
  3. Step 3: Cross multiply
    347,582.21x = 521,456.55 × 145,065.71
  4. Step 4: Simplify right side
    347,582.21x = 75,645,464,659.90
  5. Step 5: Solve for x
    x = 75,645,464,659.90/347,582.21
  6. Step 6: Final answer
    x = 217,633.30

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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.