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Finding the Fourth Proportional to 328,274.80, 492,412.23 and 253,504.01

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Solution

The fourth proportional to 328,274.80, 492,412.23 and 253,504.01 is: 380,256.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,274.80 : 492,412.23 = 253,504.01 : x
  2. Step 2: Convert to fraction form
    328,274.80/492,412.23 = 253,504.01/x
  3. Step 3: Cross multiply
    328,274.80x = 492,412.23 × 253,504.01
  4. Step 4: Simplify right side
    328,274.80x = 124,828,476,109.07
  5. Step 5: Solve for x
    x = 124,828,476,109.07/328,274.80
  6. Step 6: Final answer
    x = 380,256.04

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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.