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Finding the Fourth Proportional to 303,486.80, 424,094.20 and 303,486.80

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Solution

The fourth proportional to 303,486.80, 424,094.20 and 303,486.80 is: 424,094.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,486.80 : 424,094.20 = 303,486.80 : x
  2. Step 2: Convert to fraction form
    303,486.80/424,094.20 = 303,486.80/x
  3. Step 3: Cross multiply
    303,486.80x = 424,094.20 × 303,486.80
  4. Step 4: Simplify right side
    303,486.80x = 128,706,991,656.56
  5. Step 5: Solve for x
    x = 128,706,991,656.56/303,486.80
  6. Step 6: Final answer
    x = 424,094.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.