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Finding the Fourth Proportional to 173,800.60, 260,457.90 and 138,322.60

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Solution

The fourth proportional to 173,800.60, 260,457.90 and 138,322.60 is: 207,290.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,800.60 : 260,457.90 = 138,322.60 : x
  2. Step 2: Convert to fraction form
    173,800.60/260,457.90 = 138,322.60/x
  3. Step 3: Cross multiply
    173,800.60x = 260,457.90 × 138,322.60
  4. Step 4: Simplify right side
    173,800.60x = 36,027,213,918.54
  5. Step 5: Solve for x
    x = 36,027,213,918.54/173,800.60
  6. Step 6: Final answer
    x = 207,290.50

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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.