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Finding the Fourth Proportional to 453,425.40, 680,109.30 and 153,905.40

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Solution

The fourth proportional to 453,425.40, 680,109.30 and 153,905.40 is: 230,848.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,425.40 : 680,109.30 = 153,905.40 : x
  2. Step 2: Convert to fraction form
    453,425.40/680,109.30 = 153,905.40/x
  3. Step 3: Cross multiply
    453,425.40x = 680,109.30 × 153,905.40
  4. Step 4: Simplify right side
    453,425.40x = 104,672,493,860.22
  5. Step 5: Solve for x
    x = 104,672,493,860.22/453,425.40
  6. Step 6: Final answer
    x = 230,848.32

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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.