Home / 443,315.30-664,669.17-158,999.76

Finding the Fourth Proportional to 443,315.30, 664,669.17 and 158,999.76

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Solution

The fourth proportional to 443,315.30, 664,669.17 and 158,999.76 is: 238,390.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,315.30 : 664,669.17 = 158,999.76 : x
  2. Step 2: Convert to fraction form
    443,315.30/664,669.17 = 158,999.76/x
  3. Step 3: Cross multiply
    443,315.30x = 664,669.17 × 158,999.76
  4. Step 4: Simplify right side
    443,315.30x = 105,682,238,509.40
  5. Step 5: Solve for x
    x = 105,682,238,509.40/443,315.30
  6. Step 6: Final answer
    x = 238,390.69

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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.