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Finding the Fourth Proportional to 202,259.37, 279,000.07 and 129,636.39

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Solution

The fourth proportional to 202,259.37, 279,000.07 and 129,636.39 is: 178,822.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,259.37 : 279,000.07 = 129,636.39 : x
  2. Step 2: Convert to fraction form
    202,259.37/279,000.07 = 129,636.39/x
  3. Step 3: Cross multiply
    202,259.37x = 279,000.07 × 129,636.39
  4. Step 4: Simplify right side
    202,259.37x = 36,168,561,884.55
  5. Step 5: Solve for x
    x = 36,168,561,884.55/202,259.37
  6. Step 6: Final answer
    x = 178,822.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.