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Finding the Fourth Proportional to 453,732.64, 680,598.96 and 121,300

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Solution

The fourth proportional to 453,732.64, 680,598.96 and 121,300 is: 181,950

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,732.64 : 680,598.96 = 121,300 : x
  2. Step 2: Convert to fraction form
    453,732.64/680,598.96 = 121,300/x
  3. Step 3: Cross multiply
    453,732.64x = 680,598.96 × 121,300
  4. Step 4: Simplify right side
    453,732.64x = 82,556,653,848
  5. Step 5: Solve for x
    x = 82,556,653,848/453,732.64
  6. Step 6: Final answer
    x = 181,950

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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.