Home / 214,308.84-321,440.67-87,962.40

Finding the Fourth Proportional to 214,308.84, 321,440.67 and 87,962.40

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Solution

The fourth proportional to 214,308.84, 321,440.67 and 87,962.40 is: 131,934.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,308.84 : 321,440.67 = 87,962.40 : x
  2. Step 2: Convert to fraction form
    214,308.84/321,440.67 = 87,962.40/x
  3. Step 3: Cross multiply
    214,308.84x = 321,440.67 × 87,962.40
  4. Step 4: Simplify right side
    214,308.84x = 28,274,692,790.81
  5. Step 5: Solve for x
    x = 28,274,692,790.81/214,308.84
  6. Step 6: Final answer
    x = 131,934.33

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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.