Home / 354,749.60-531,433.20-214,090.40

Finding the Fourth Proportional to 354,749.60, 531,433.20 and 214,090.40

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Solution

The fourth proportional to 354,749.60, 531,433.20 and 214,090.40 is: 320,718.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,749.60 : 531,433.20 = 214,090.40 : x
  2. Step 2: Convert to fraction form
    354,749.60/531,433.20 = 214,090.40/x
  3. Step 3: Cross multiply
    354,749.60x = 531,433.20 × 214,090.40
  4. Step 4: Simplify right side
    354,749.60x = 113,774,746,361.28
  5. Step 5: Solve for x
    x = 113,774,746,361.28/354,749.60
  6. Step 6: Final answer
    x = 320,718.46

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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.