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Finding the Fourth Proportional to 453,490.80, 680,308.20 and 153,999.60

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Solution

The fourth proportional to 453,490.80, 680,308.20 and 153,999.60 is: 231,023.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,490.80 : 680,308.20 = 153,999.60 : x
  2. Step 2: Convert to fraction form
    453,490.80/680,308.20 = 153,999.60/x
  3. Step 3: Cross multiply
    453,490.80x = 680,308.20 × 153,999.60
  4. Step 4: Simplify right side
    453,490.80x = 104,767,190,676.72
  5. Step 5: Solve for x
    x = 104,767,190,676.72/453,490.80
  6. Step 6: Final answer
    x = 231,023.85

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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.