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Finding the Fourth Proportional to 328,589.82, 492,884.82 and 139,001.04

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Solution

The fourth proportional to 328,589.82, 492,884.82 and 139,001.04 is: 208,501.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,589.82 : 492,884.82 = 139,001.04 : x
  2. Step 2: Convert to fraction form
    328,589.82/492,884.82 = 139,001.04/x
  3. Step 3: Cross multiply
    328,589.82x = 492,884.82 × 139,001.04
  4. Step 4: Simplify right side
    328,589.82x = 68,511,502,580.21
  5. Step 5: Solve for x
    x = 68,511,502,580.21/328,589.82
  6. Step 6: Final answer
    x = 208,501.60

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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.