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Finding the Fourth Proportional to 466,039.92, 643,128.98 and 262,090.80

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Solution

The fourth proportional to 466,039.92, 643,128.98 and 262,090.80 is: 361,681.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,039.92 : 643,128.98 = 262,090.80 : x
  2. Step 2: Convert to fraction form
    466,039.92/643,128.98 = 262,090.80/x
  3. Step 3: Cross multiply
    466,039.92x = 643,128.98 × 262,090.80
  4. Step 4: Simplify right side
    466,039.92x = 168,558,188,871.38
  5. Step 5: Solve for x
    x = 168,558,188,871.38/466,039.92
  6. Step 6: Final answer
    x = 361,681.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.