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Finding the Fourth Proportional to 229,998.19, 317,401.08 and 128,024.77

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Solution

The fourth proportional to 229,998.19, 317,401.08 and 128,024.77 is: 176,676.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,998.19 : 317,401.08 = 128,024.77 : x
  2. Step 2: Convert to fraction form
    229,998.19/317,401.08 = 128,024.77/x
  3. Step 3: Cross multiply
    229,998.19x = 317,401.08 × 128,024.77
  4. Step 4: Simplify right side
    229,998.19x = 40,635,198,677.75
  5. Step 5: Solve for x
    x = 40,635,198,677.75/229,998.19
  6. Step 6: Final answer
    x = 176,676.17

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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.