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Finding the Fourth Proportional to 328,965.51, 493,465.81 and 104,343.26

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Solution

The fourth proportional to 328,965.51, 493,465.81 and 104,343.26 is: 156,520.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,965.51 : 493,465.81 = 104,343.26 : x
  2. Step 2: Convert to fraction form
    328,965.51/493,465.81 = 104,343.26/x
  3. Step 3: Cross multiply
    328,965.51x = 493,465.81 × 104,343.26
  4. Step 4: Simplify right side
    328,965.51x = 51,489,832,798.28
  5. Step 5: Solve for x
    x = 51,489,832,798.28/328,965.51
  6. Step 6: Final answer
    x = 156,520.46

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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.