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Finding the Fourth Proportional to 328,376.82, 492,565.23 and 253,606.03

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Solution

The fourth proportional to 328,376.82, 492,565.23 and 253,606.03 is: 380,409.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,376.82 : 492,565.23 = 253,606.03 : x
  2. Step 2: Convert to fraction form
    328,376.82/492,565.23 = 253,606.03/x
  3. Step 3: Cross multiply
    328,376.82x = 492,565.23 × 253,606.03
  4. Step 4: Simplify right side
    328,376.82x = 124,917,512,496.34
  5. Step 5: Solve for x
    x = 124,917,512,496.34/328,376.82
  6. Step 6: Final answer
    x = 380,409.05

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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.