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Finding the Fourth Proportional to 392,297.25, 540,338.98 and 301,479.33

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Solution

The fourth proportional to 392,297.25, 540,338.98 and 301,479.33 is: 415,248.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,297.25 : 540,338.98 = 301,479.33 : x
  2. Step 2: Convert to fraction form
    392,297.25/540,338.98 = 301,479.33/x
  3. Step 3: Cross multiply
    392,297.25x = 540,338.98 × 301,479.33
  4. Step 4: Simplify right side
    392,297.25x = 162,901,035,501.13
  5. Step 5: Solve for x
    x = 162,901,035,501.13/392,297.25
  6. Step 6: Final answer
    x = 415,248.98

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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.