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Finding the Fourth Proportional to 453,266.82, 679,287.60 and 172,630.98

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Solution

The fourth proportional to 453,266.82, 679,287.60 and 172,630.98 is: 258,713.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,266.82 : 679,287.60 = 172,630.98 : x
  2. Step 2: Convert to fraction form
    453,266.82/679,287.60 = 172,630.98/x
  3. Step 3: Cross multiply
    453,266.82x = 679,287.60 × 172,630.98
  4. Step 4: Simplify right side
    453,266.82x = 117,266,084,089.85
  5. Step 5: Solve for x
    x = 117,266,084,089.85/453,266.82
  6. Step 6: Final answer
    x = 258,713.14

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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.