Home / 354,519.02-489,242.90-193,379.82

Finding the Fourth Proportional to 354,519.02, 489,242.90 and 193,379.82

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Solution

The fourth proportional to 354,519.02, 489,242.90 and 193,379.82 is: 266,867.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,519.02 : 489,242.90 = 193,379.82 : x
  2. Step 2: Convert to fraction form
    354,519.02/489,242.90 = 193,379.82/x
  3. Step 3: Cross multiply
    354,519.02x = 489,242.90 × 193,379.82
  4. Step 4: Simplify right side
    354,519.02x = 94,609,703,938.28
  5. Step 5: Solve for x
    x = 94,609,703,938.28/354,519.02
  6. Step 6: Final answer
    x = 266,867.78

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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.