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Finding the Fourth Proportional to 352,623.60, 528,060.60 and 282,639.60

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Solution

The fourth proportional to 352,623.60, 528,060.60 and 282,639.60 is: 423,258.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,623.60 : 528,060.60 = 282,639.60 : x
  2. Step 2: Convert to fraction form
    352,623.60/528,060.60 = 282,639.60/x
  3. Step 3: Cross multiply
    352,623.60x = 528,060.60 × 282,639.60
  4. Step 4: Simplify right side
    352,623.60x = 149,250,836,759.76
  5. Step 5: Solve for x
    x = 149,250,836,759.76/352,623.60
  6. Step 6: Final answer
    x = 423,258.22

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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.