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Finding the Fourth Proportional to 259,203.36, 388,746.72 and 169,217.76

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Solution

The fourth proportional to 259,203.36, 388,746.72 and 169,217.76 is: 253,788.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,203.36 : 388,746.72 = 169,217.76 : x
  2. Step 2: Convert to fraction form
    259,203.36/388,746.72 = 169,217.76/x
  3. Step 3: Cross multiply
    259,203.36x = 388,746.72 × 169,217.76
  4. Step 4: Simplify right side
    259,203.36x = 65,782,849,165.75
  5. Step 5: Solve for x
    x = 65,782,849,165.75/259,203.36
  6. Step 6: Final answer
    x = 253,788.57

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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.