Home / 347,580.21-521,453.55-145,063.71

Finding the Fourth Proportional to 347,580.21, 521,453.55 and 145,063.71

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Solution

The fourth proportional to 347,580.21, 521,453.55 and 145,063.71 is: 217,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,580.21 : 521,453.55 = 145,063.71 : x
  2. Step 2: Convert to fraction form
    347,580.21/521,453.55 = 145,063.71/x
  3. Step 3: Cross multiply
    347,580.21x = 521,453.55 × 145,063.71
  4. Step 4: Simplify right side
    347,580.21x = 75,643,986,283.68
  5. Step 5: Solve for x
    x = 75,643,986,283.68/347,580.21
  6. Step 6: Final answer
    x = 217,630.30

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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.