Home / 214,637.10-321,955.65-135,840.30

Finding the Fourth Proportional to 214,637.10, 321,955.65 and 135,840.30

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Solution

The fourth proportional to 214,637.10, 321,955.65 and 135,840.30 is: 203,760.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,637.10 : 321,955.65 = 135,840.30 : x
  2. Step 2: Convert to fraction form
    214,637.10/321,955.65 = 135,840.30/x
  3. Step 3: Cross multiply
    214,637.10x = 321,955.65 × 135,840.30
  4. Step 4: Simplify right side
    214,637.10x = 43,734,552,082.70
  5. Step 5: Solve for x
    x = 43,734,552,082.70/214,637.10
  6. Step 6: Final answer
    x = 203,760.45

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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.