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Finding the Fourth Proportional to 328,899.69, 493,347.38 and 254,127.69

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Solution

The fourth proportional to 328,899.69, 493,347.38 and 254,127.69 is: 381,189.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,899.69 : 493,347.38 = 254,127.69 : x
  2. Step 2: Convert to fraction form
    328,899.69/493,347.38 = 254,127.69/x
  3. Step 3: Cross multiply
    328,899.69x = 493,347.38 × 254,127.69
  4. Step 4: Simplify right side
    328,899.69x = 125,373,228,776.31
  5. Step 5: Solve for x
    x = 125,373,228,776.31/328,899.69
  6. Step 6: Final answer
    x = 381,189.87

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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.