Home / 423,435.11-634,669.47-170,553.65

Finding the Fourth Proportional to 423,435.11, 634,669.47 and 170,553.65

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Solution

The fourth proportional to 423,435.11, 634,669.47 and 170,553.65 is: 255,635.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,435.11 : 634,669.47 = 170,553.65 : x
  2. Step 2: Convert to fraction form
    423,435.11/634,669.47 = 170,553.65/x
  3. Step 3: Cross multiply
    423,435.11x = 634,669.47 × 170,553.65
  4. Step 4: Simplify right side
    423,435.11x = 108,245,194,652.07
  5. Step 5: Solve for x
    x = 108,245,194,652.07/423,435.11
  6. Step 6: Final answer
    x = 255,635.85

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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.