Home / 214,811.40-321,909.90-158,209.80

Finding the Fourth Proportional to 214,811.40, 321,909.90 and 158,209.80

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Solution

The fourth proportional to 214,811.40, 321,909.90 and 158,209.80 is: 237,088.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,811.40 : 321,909.90 = 158,209.80 : x
  2. Step 2: Convert to fraction form
    214,811.40/321,909.90 = 158,209.80/x
  3. Step 3: Cross multiply
    214,811.40x = 321,909.90 × 158,209.80
  4. Step 4: Simplify right side
    214,811.40x = 50,929,300,897.02
  5. Step 5: Solve for x
    x = 50,929,300,897.02/214,811.40
  6. Step 6: Final answer
    x = 237,088.45

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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.