Home / 214,487.80-321,731.70-190,868.20

Finding the Fourth Proportional to 214,487.80, 321,731.70 and 190,868.20

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Solution

The fourth proportional to 214,487.80, 321,731.70 and 190,868.20 is: 286,302.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,487.80 : 321,731.70 = 190,868.20 : x
  2. Step 2: Convert to fraction form
    214,487.80/321,731.70 = 190,868.20/x
  3. Step 3: Cross multiply
    214,487.80x = 321,731.70 × 190,868.20
  4. Step 4: Simplify right side
    214,487.80x = 61,408,350,461.94
  5. Step 5: Solve for x
    x = 61,408,350,461.94/214,487.80
  6. Step 6: Final answer
    x = 286,302.30

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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.