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Finding the Fourth Proportional to 415,208.93, 572,868.90 and 270,228.15

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Solution

The fourth proportional to 415,208.93, 572,868.90 and 270,228.15 is: 372,837.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,208.93 : 572,868.90 = 270,228.15 : x
  2. Step 2: Convert to fraction form
    415,208.93/572,868.90 = 270,228.15/x
  3. Step 3: Cross multiply
    415,208.93x = 572,868.90 × 270,228.15
  4. Step 4: Simplify right side
    415,208.93x = 154,805,303,039.54
  5. Step 5: Solve for x
    x = 154,805,303,039.54/415,208.93
  6. Step 6: Final answer
    x = 372,837.12

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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.