Home / 214,200.32-321,298.02-87,812.32

Finding the Fourth Proportional to 214,200.32, 321,298.02 and 87,812.32

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Solution

The fourth proportional to 214,200.32, 321,298.02 and 87,812.32 is: 131,717.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,200.32 : 321,298.02 = 87,812.32 : x
  2. Step 2: Convert to fraction form
    214,200.32/321,298.02 = 87,812.32/x
  3. Step 3: Cross multiply
    214,200.32x = 321,298.02 × 87,812.32
  4. Step 4: Simplify right side
    214,200.32x = 28,213,924,547.61
  5. Step 5: Solve for x
    x = 28,213,924,547.61/214,200.32
  6. Step 6: Final answer
    x = 131,717.47

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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.