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Finding the Fourth Proportional to 268,934.45, 371,129.54 and 149,702.45

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Solution

The fourth proportional to 268,934.45, 371,129.54 and 149,702.45 is: 206,589.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,934.45 : 371,129.54 = 149,702.45 : x
  2. Step 2: Convert to fraction form
    268,934.45/371,129.54 = 149,702.45/x
  3. Step 3: Cross multiply
    268,934.45x = 371,129.54 × 149,702.45
  4. Step 4: Simplify right side
    268,934.45x = 55,559,000,656.86
  5. Step 5: Solve for x
    x = 55,559,000,656.86/268,934.45
  6. Step 6: Final answer
    x = 206,589.38

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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.