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Finding the Fourth Proportional to 351,409.74, 527,114.59 and 85,170.25

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Solution

The fourth proportional to 351,409.74, 527,114.59 and 85,170.25 is: 127,755.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,409.74 : 527,114.59 = 85,170.25 : x
  2. Step 2: Convert to fraction form
    351,409.74/527,114.59 = 85,170.25/x
  3. Step 3: Cross multiply
    351,409.74x = 527,114.59 × 85,170.25
  4. Step 4: Simplify right side
    351,409.74x = 44,894,482,334.00
  5. Step 5: Solve for x
    x = 44,894,482,334.00/351,409.74
  6. Step 6: Final answer
    x = 127,755.37

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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.