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Finding the Fourth Proportional to 320,688.04, 480,954.30 and 133,597.48

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Solution

The fourth proportional to 320,688.04, 480,954.30 and 133,597.48 is: 200,363.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,688.04 : 480,954.30 = 133,597.48 : x
  2. Step 2: Convert to fraction form
    320,688.04/480,954.30 = 133,597.48/x
  3. Step 3: Cross multiply
    320,688.04x = 480,954.30 × 133,597.48
  4. Step 4: Simplify right side
    320,688.04x = 64,254,282,475.16
  5. Step 5: Solve for x
    x = 64,254,282,475.16/320,688.04
  6. Step 6: Final answer
    x = 200,363.83

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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.