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Finding the Fourth Proportional to 664,363, 996,544.50 and 215,459.38

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Solution

The fourth proportional to 664,363, 996,544.50 and 215,459.38 is: 323,189.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,363 : 996,544.50 = 215,459.38 : x
  2. Step 2: Convert to fraction form
    664,363/996,544.50 = 215,459.38/x
  3. Step 3: Cross multiply
    664,363x = 996,544.50 × 215,459.38
  4. Step 4: Simplify right side
    664,363x = 214,714,860,112.41
  5. Step 5: Solve for x
    x = 214,714,860,112.41/664,363
  6. Step 6: Final answer
    x = 323,189.07

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1.5x scale

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.