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Finding the Fourth Proportional to 485,477.04, 728,214.48 and 130,491.04

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Solution

The fourth proportional to 485,477.04, 728,214.48 and 130,491.04 is: 195,736.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,477.04 : 728,214.48 = 130,491.04 : x
  2. Step 2: Convert to fraction form
    485,477.04/728,214.48 = 130,491.04/x
  3. Step 3: Cross multiply
    485,477.04x = 728,214.48 × 130,491.04
  4. Step 4: Simplify right side
    485,477.04x = 95,025,464,838.26
  5. Step 5: Solve for x
    x = 95,025,464,838.26/485,477.04
  6. Step 6: Final answer
    x = 195,736.27

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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.