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Finding the Fourth Proportional to 269,113.89, 403,530.67 and 126,920.98

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Solution

The fourth proportional to 269,113.89, 403,530.67 and 126,920.98 is: 190,315.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,113.89 : 403,530.67 = 126,920.98 : x
  2. Step 2: Convert to fraction form
    269,113.89/403,530.67 = 126,920.98/x
  3. Step 3: Cross multiply
    269,113.89x = 403,530.67 × 126,920.98
  4. Step 4: Simplify right side
    269,113.89x = 51,216,507,461.85
  5. Step 5: Solve for x
    x = 51,216,507,461.85/269,113.89
  6. Step 6: Final answer
    x = 190,315.36

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1.5x scale

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.