Home / 352,429.20-528,701.40-115,707.60

Finding the Fourth Proportional to 352,429.20, 528,701.40 and 115,707.60

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Solution

The fourth proportional to 352,429.20, 528,701.40 and 115,707.60 is: 173,580.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,429.20 : 528,701.40 = 115,707.60 : x
  2. Step 2: Convert to fraction form
    352,429.20/528,701.40 = 115,707.60/x
  3. Step 3: Cross multiply
    352,429.20x = 528,701.40 × 115,707.60
  4. Step 4: Simplify right side
    352,429.20x = 61,174,770,110.64
  5. Step 5: Solve for x
    x = 61,174,770,110.64/352,429.20
  6. Step 6: Final answer
    x = 173,580.31

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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.