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Finding the Fourth Proportional to 229,998.69, 317,401.77 and 128,025.27

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Solution

The fourth proportional to 229,998.69, 317,401.77 and 128,025.27 is: 176,676.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,998.69 : 317,401.77 = 128,025.27 : x
  2. Step 2: Convert to fraction form
    229,998.69/317,401.77 = 128,025.27/x
  3. Step 3: Cross multiply
    229,998.69x = 317,401.77 × 128,025.27
  4. Step 4: Simplify right side
    229,998.69x = 40,635,445,715.72
  5. Step 5: Solve for x
    x = 40,635,445,715.72/229,998.69
  6. Step 6: Final answer
    x = 176,676.86

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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.