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Finding the Fourth Proportional to 427,929.85, 590,501.71 and 255,813.32

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Solution

The fourth proportional to 427,929.85, 590,501.71 and 255,813.32 is: 352,997.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,929.85 : 590,501.71 = 255,813.32 : x
  2. Step 2: Convert to fraction form
    427,929.85/590,501.71 = 255,813.32/x
  3. Step 3: Cross multiply
    427,929.85x = 590,501.71 × 255,813.32
  4. Step 4: Simplify right side
    427,929.85x = 151,058,204,696.80
  5. Step 5: Solve for x
    x = 151,058,204,696.80/427,929.85
  6. Step 6: Final answer
    x = 352,997.59

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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.