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Finding the Fourth Proportional to 154,153.50, 231,230.34 and 43,345.50

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Solution

The fourth proportional to 154,153.50, 231,230.34 and 43,345.50 is: 65,018.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,153.50 : 231,230.34 = 43,345.50 : x
  2. Step 2: Convert to fraction form
    154,153.50/231,230.34 = 43,345.50/x
  3. Step 3: Cross multiply
    154,153.50x = 231,230.34 × 43,345.50
  4. Step 4: Simplify right side
    154,153.50x = 10,022,794,702.47
  5. Step 5: Solve for x
    x = 10,022,794,702.47/154,153.50
  6. Step 6: Final answer
    x = 65,018.28

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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.