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Finding the Fourth Proportional to 403,375.88, 605,091.51 and 133,503.53

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Solution

The fourth proportional to 403,375.88, 605,091.51 and 133,503.53 is: 200,264.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,375.88 : 605,091.51 = 133,503.53 : x
  2. Step 2: Convert to fraction form
    403,375.88/605,091.51 = 133,503.53/x
  3. Step 3: Cross multiply
    403,375.88x = 605,091.51 × 133,503.53
  4. Step 4: Simplify right side
    403,375.88x = 80,781,849,532.57
  5. Step 5: Solve for x
    x = 80,781,849,532.57/403,375.88
  6. Step 6: Final answer
    x = 200,264.45

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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.