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Finding the Fourth Proportional to 328,187.08, 493,308.21 and 216,584.47

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Solution

The fourth proportional to 328,187.08, 493,308.21 and 216,584.47 is: 325,554.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,187.08 : 493,308.21 = 216,584.47 : x
  2. Step 2: Convert to fraction form
    328,187.08/493,308.21 = 216,584.47/x
  3. Step 3: Cross multiply
    328,187.08x = 493,308.21 × 216,584.47
  4. Step 4: Simplify right side
    328,187.08x = 106,842,897,209.50
  5. Step 5: Solve for x
    x = 106,842,897,209.50/328,187.08
  6. Step 6: Final answer
    x = 325,554.85

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1.5x scale

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.