Home / 214,538.40-321,807.60-164,869.20

Finding the Fourth Proportional to 214,538.40, 321,807.60 and 164,869.20

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Solution

The fourth proportional to 214,538.40, 321,807.60 and 164,869.20 is: 247,303.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,538.40 : 321,807.60 = 164,869.20 : x
  2. Step 2: Convert to fraction form
    214,538.40/321,807.60 = 164,869.20/x
  3. Step 3: Cross multiply
    214,538.40x = 321,807.60 × 164,869.20
  4. Step 4: Simplify right side
    214,538.40x = 53,056,161,565.92
  5. Step 5: Solve for x
    x = 53,056,161,565.92/214,538.40
  6. Step 6: Final answer
    x = 247,303.80

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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.