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Finding the Fourth Proportional to 439,497.86, 658,373.32 and 214,201.34

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Solution

The fourth proportional to 439,497.86, 658,373.32 and 214,201.34 is: 320,876.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,497.86 : 658,373.32 = 214,201.34 : x
  2. Step 2: Convert to fraction form
    439,497.86/658,373.32 = 214,201.34/x
  3. Step 3: Cross multiply
    439,497.86x = 658,373.32 × 214,201.34
  4. Step 4: Simplify right side
    439,497.86x = 141,024,447,364.25
  5. Step 5: Solve for x
    x = 141,024,447,364.25/439,497.86
  6. Step 6: Final answer
    x = 320,876.30

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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.