Home / 352,427.21-528,636.24-86,190.04

Finding the Fourth Proportional to 352,427.21, 528,636.24 and 86,190.04

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Solution

The fourth proportional to 352,427.21, 528,636.24 and 86,190.04 is: 129,283.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,427.21 : 528,636.24 = 86,190.04 : x
  2. Step 2: Convert to fraction form
    352,427.21/528,636.24 = 86,190.04/x
  3. Step 3: Cross multiply
    352,427.21x = 528,636.24 × 86,190.04
  4. Step 4: Simplify right side
    352,427.21x = 45,563,177,349.46
  5. Step 5: Solve for x
    x = 45,563,177,349.46/352,427.21
  6. Step 6: Final answer
    x = 129,283.94

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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.