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Finding the Fourth Proportional to 272,701.04, 408,507 and 216,636.08

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Solution

The fourth proportional to 272,701.04, 408,507 and 216,636.08 is: 324,521.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,701.04 : 408,507 = 216,636.08 : x
  2. Step 2: Convert to fraction form
    272,701.04/408,507 = 216,636.08/x
  3. Step 3: Cross multiply
    272,701.04x = 408,507 × 216,636.08
  4. Step 4: Simplify right side
    272,701.04x = 88,497,355,132.56
  5. Step 5: Solve for x
    x = 88,497,355,132.56/272,701.04
  6. Step 6: Final answer
    x = 324,521.52

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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.