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Finding the Fourth Proportional to 357,398.35, 534,757.58 and 212,775.18

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Solution

The fourth proportional to 357,398.35, 534,757.58 and 212,775.18 is: 318,365.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,398.35 : 534,757.58 = 212,775.18 : x
  2. Step 2: Convert to fraction form
    357,398.35/534,757.58 = 212,775.18/x
  3. Step 3: Cross multiply
    357,398.35x = 534,757.58 × 212,775.18
  4. Step 4: Simplify right side
    357,398.35x = 113,783,140,340.86
  5. Step 5: Solve for x
    x = 113,783,140,340.86/357,398.35
  6. Step 6: Final answer
    x = 318,365.04

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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.