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Finding the Fourth Proportional to 173,508.60, 260,019.90 and 138,030.60

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Solution

The fourth proportional to 173,508.60, 260,019.90 and 138,030.60 is: 206,852.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,508.60 : 260,019.90 = 138,030.60 : x
  2. Step 2: Convert to fraction form
    173,508.60/260,019.90 = 138,030.60/x
  3. Step 3: Cross multiply
    173,508.60x = 260,019.90 × 138,030.60
  4. Step 4: Simplify right side
    173,508.60x = 35,890,702,808.94
  5. Step 5: Solve for x
    x = 35,890,702,808.94/173,508.60
  6. Step 6: Final answer
    x = 206,852.59

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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.