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Finding the Fourth Proportional to 210,410.60, 315,615.90 and 173,012.90

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Solution

The fourth proportional to 210,410.60, 315,615.90 and 173,012.90 is: 259,519.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,410.60 : 315,615.90 = 173,012.90 : x
  2. Step 2: Convert to fraction form
    210,410.60/315,615.90 = 173,012.90/x
  3. Step 3: Cross multiply
    210,410.60x = 315,615.90 × 173,012.90
  4. Step 4: Simplify right side
    210,410.60x = 54,605,622,145.11
  5. Step 5: Solve for x
    x = 54,605,622,145.11/210,410.60
  6. Step 6: Final answer
    x = 259,519.35

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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.