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Finding the Fourth Proportional to 490,810.88, 736,232.76 and 135,795.20

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Solution

The fourth proportional to 490,810.88, 736,232.76 and 135,795.20 is: 203,697.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,810.88 : 736,232.76 = 135,795.20 : x
  2. Step 2: Convert to fraction form
    490,810.88/736,232.76 = 135,795.20/x
  3. Step 3: Cross multiply
    490,810.88x = 736,232.76 × 135,795.20
  4. Step 4: Simplify right side
    490,810.88x = 99,976,874,890.75
  5. Step 5: Solve for x
    x = 99,976,874,890.75/490,810.88
  6. Step 6: Final answer
    x = 203,697.35

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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.