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Finding the Fourth Proportional to 320,881.04, 480,629.62 and 302,016.57

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Solution

The fourth proportional to 320,881.04, 480,629.62 and 302,016.57 is: 452,373.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,881.04 : 480,629.62 = 302,016.57 : x
  2. Step 2: Convert to fraction form
    320,881.04/480,629.62 = 302,016.57/x
  3. Step 3: Cross multiply
    320,881.04x = 480,629.62 × 302,016.57
  4. Step 4: Simplify right side
    320,881.04x = 145,158,112,752.70
  5. Step 5: Solve for x
    x = 145,158,112,752.70/320,881.04
  6. Step 6: Final answer
    x = 452,373.60

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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.