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Finding the Fourth Proportional to 325,483.70, 488,047.57 and 258,446.36

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Solution

The fourth proportional to 325,483.70, 488,047.57 and 258,446.36 is: 387,528.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,483.70 : 488,047.57 = 258,446.36 : x
  2. Step 2: Convert to fraction form
    325,483.70/488,047.57 = 258,446.36/x
  3. Step 3: Cross multiply
    325,483.70x = 488,047.57 × 258,446.36
  4. Step 4: Simplify right side
    325,483.70x = 126,134,115,533.11
  5. Step 5: Solve for x
    x = 126,134,115,533.11/325,483.70
  6. Step 6: Final answer
    x = 387,528.22

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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.