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Finding the Fourth Proportional to 445,986.56, 615,452.70 and 252,390.67

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Solution

The fourth proportional to 445,986.56, 615,452.70 and 252,390.67 is: 348,294.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,986.56 : 615,452.70 = 252,390.67 : x
  2. Step 2: Convert to fraction form
    445,986.56/615,452.70 = 252,390.67/x
  3. Step 3: Cross multiply
    445,986.56x = 615,452.70 × 252,390.67
  4. Step 4: Simplify right side
    445,986.56x = 155,334,517,294.45
  5. Step 5: Solve for x
    x = 155,334,517,294.45/445,986.56
  6. Step 6: Final answer
    x = 348,294.17

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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.