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Finding the Fourth Proportional to 328,645, 453,530.10 and 177,742

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Solution

The fourth proportional to 328,645, 453,530.10 and 177,742 is: 245,283.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,645 : 453,530.10 = 177,742 : x
  2. Step 2: Convert to fraction form
    328,645/453,530.10 = 177,742/x
  3. Step 3: Cross multiply
    328,645x = 453,530.10 × 177,742
  4. Step 4: Simplify right side
    328,645x = 80,611,347,034.20
  5. Step 5: Solve for x
    x = 80,611,347,034.20/328,645
  6. Step 6: Final answer
    x = 245,283.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.