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Finding the Fourth Proportional to 307,172.72, 460,798.04 and 120,159.92

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Solution

The fourth proportional to 307,172.72, 460,798.04 and 120,159.92 is: 180,255.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,172.72 : 460,798.04 = 120,159.92 : x
  2. Step 2: Convert to fraction form
    307,172.72/460,798.04 = 120,159.92/x
  3. Step 3: Cross multiply
    307,172.72x = 460,798.04 × 120,159.92
  4. Step 4: Simplify right side
    307,172.72x = 55,369,455,622.56
  5. Step 5: Solve for x
    x = 55,369,455,622.56/307,172.72
  6. Step 6: Final answer
    x = 180,255.12

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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.