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Finding the Fourth Proportional to 328,347.27, 492,548.85 and 103,647.60

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Solution

The fourth proportional to 328,347.27, 492,548.85 and 103,647.60 is: 155,480.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,347.27 : 492,548.85 = 103,647.60 : x
  2. Step 2: Convert to fraction form
    328,347.27/492,548.85 = 103,647.60/x
  3. Step 3: Cross multiply
    328,347.27x = 492,548.85 × 103,647.60
  4. Step 4: Simplify right side
    328,347.27x = 51,051,506,185.26
  5. Step 5: Solve for x
    x = 51,051,506,185.26/328,347.27
  6. Step 6: Final answer
    x = 155,480.22

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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.