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Finding the Fourth Proportional to 345,322.60, 476,543.46 and 194,420.68

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Solution

The fourth proportional to 345,322.60, 476,543.46 and 194,420.68 is: 268,299.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,322.60 : 476,543.46 = 194,420.68 : x
  2. Step 2: Convert to fraction form
    345,322.60/476,543.46 = 194,420.68/x
  3. Step 3: Cross multiply
    345,322.60x = 476,543.46 × 194,420.68
  4. Step 4: Simplify right side
    345,322.60x = 92,649,903,542.75
  5. Step 5: Solve for x
    x = 92,649,903,542.75/345,322.60
  6. Step 6: Final answer
    x = 268,299.57

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1.5x scale

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.