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Finding the Fourth Proportional to 328,051.80, 491,814.90 and 301,807.80

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Solution

The fourth proportional to 328,051.80, 491,814.90 and 301,807.80 is: 452,469.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,051.80 : 491,814.90 = 301,807.80 : x
  2. Step 2: Convert to fraction form
    328,051.80/491,814.90 = 301,807.80/x
  3. Step 3: Cross multiply
    328,051.80x = 491,814.90 × 301,807.80
  4. Step 4: Simplify right side
    328,051.80x = 148,433,572,976.22
  5. Step 5: Solve for x
    x = 148,433,572,976.22/328,051.80
  6. Step 6: Final answer
    x = 452,469.92

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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.