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Finding the Fourth Proportional to 347,895.60, 521,940.60 and 170,408.40

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Solution

The fourth proportional to 347,895.60, 521,940.60 and 170,408.40 is: 255,660.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,895.60 : 521,940.60 = 170,408.40 : x
  2. Step 2: Convert to fraction form
    347,895.60/521,940.60 = 170,408.40/x
  3. Step 3: Cross multiply
    347,895.60x = 521,940.60 × 170,408.40
  4. Step 4: Simplify right side
    347,895.60x = 88,943,062,541.04
  5. Step 5: Solve for x
    x = 88,943,062,541.04/347,895.60
  6. Step 6: Final answer
    x = 255,660.21

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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.