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Finding the Fourth Proportional to 453,911.50, 680,670.30 and 154,311.60

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Solution

The fourth proportional to 453,911.50, 680,670.30 and 154,311.60 is: 231,400.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,911.50 : 680,670.30 = 154,311.60 : x
  2. Step 2: Convert to fraction form
    453,911.50/680,670.30 = 154,311.60/x
  3. Step 3: Cross multiply
    453,911.50x = 680,670.30 × 154,311.60
  4. Step 4: Simplify right side
    453,911.50x = 105,035,323,065.48
  5. Step 5: Solve for x
    x = 105,035,323,065.48/453,911.50
  6. Step 6: Final answer
    x = 231,400.44

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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.