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Finding the Fourth Proportional to 493,336.05, 680,805.86 and 266,981.55

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Solution

The fourth proportional to 493,336.05, 680,805.86 and 266,981.55 is: 368,435.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,336.05 : 680,805.86 = 266,981.55 : x
  2. Step 2: Convert to fraction form
    493,336.05/680,805.86 = 266,981.55/x
  3. Step 3: Cross multiply
    493,336.05x = 680,805.86 × 266,981.55
  4. Step 4: Simplify right side
    493,336.05x = 181,762,602,416.98
  5. Step 5: Solve for x
    x = 181,762,602,416.98/493,336.05
  6. Step 6: Final answer
    x = 368,435.68

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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.