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Finding the Fourth Proportional to 388,473.93, 536,398.07 and 303,832.17

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Solution

The fourth proportional to 388,473.93, 536,398.07 and 303,832.17 is: 419,526.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,473.93 : 536,398.07 = 303,832.17 : x
  2. Step 2: Convert to fraction form
    388,473.93/536,398.07 = 303,832.17/x
  3. Step 3: Cross multiply
    388,473.93x = 536,398.07 × 303,832.17
  4. Step 4: Simplify right side
    388,473.93x = 162,974,988,072.75
  5. Step 5: Solve for x
    x = 162,974,988,072.75/388,473.93
  6. Step 6: Final answer
    x = 419,526.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.