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Finding the Fourth Proportional to 252,205.16, 378,366.62 and 85,993.32

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Solution

The fourth proportional to 252,205.16, 378,366.62 and 85,993.32 is: 129,010.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,205.16 : 378,366.62 = 85,993.32 : x
  2. Step 2: Convert to fraction form
    252,205.16/378,366.62 = 85,993.32/x
  3. Step 3: Cross multiply
    252,205.16x = 378,366.62 × 85,993.32
  4. Step 4: Simplify right side
    252,205.16x = 32,537,001,830.98
  5. Step 5: Solve for x
    x = 32,537,001,830.98/252,205.16
  6. Step 6: Final answer
    x = 129,010.06

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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.