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Finding the Fourth Proportional to 339,318.68, 468,280.86 and 188,416.76

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Solution

The fourth proportional to 339,318.68, 468,280.86 and 188,416.76 is: 260,026.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,318.68 : 468,280.86 = 188,416.76 : x
  2. Step 2: Convert to fraction form
    339,318.68/468,280.86 = 188,416.76/x
  3. Step 3: Cross multiply
    339,318.68x = 468,280.86 × 188,416.76
  4. Step 4: Simplify right side
    339,318.68x = 88,231,962,411.21
  5. Step 5: Solve for x
    x = 88,231,962,411.21/339,318.68
  6. Step 6: Final answer
    x = 260,026.83

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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.