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Finding the Fourth Proportional to 283,146.55, 424,719.72 and 103,245.55

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Solution

The fourth proportional to 283,146.55, 424,719.72 and 103,245.55 is: 154,868.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,146.55 : 424,719.72 = 103,245.55 : x
  2. Step 2: Convert to fraction form
    283,146.55/424,719.72 = 103,245.55/x
  3. Step 3: Cross multiply
    283,146.55x = 424,719.72 × 103,245.55
  4. Step 4: Simplify right side
    283,146.55x = 43,850,420,025.45
  5. Step 5: Solve for x
    x = 43,850,420,025.45/283,146.55
  6. Step 6: Final answer
    x = 154,868.28

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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.