Home / 288,966.20-432,866.10-164,161.40

Finding the Fourth Proportional to 288,966.20, 432,866.10 and 164,161.40

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Solution

The fourth proportional to 288,966.20, 432,866.10 and 164,161.40 is: 245,910.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,966.20 : 432,866.10 = 164,161.40 : x
  2. Step 2: Convert to fraction form
    288,966.20/432,866.10 = 164,161.40/x
  3. Step 3: Cross multiply
    288,966.20x = 432,866.10 × 164,161.40
  4. Step 4: Simplify right side
    288,966.20x = 71,059,904,988.54
  5. Step 5: Solve for x
    x = 71,059,904,988.54/288,966.20
  6. Step 6: Final answer
    x = 245,910.78

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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.