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Finding the Fourth Proportional to 255,809.24, 383,980 and 188,417.37

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Solution

The fourth proportional to 255,809.24, 383,980 and 188,417.37 is: 282,822.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,809.24 : 383,980 = 188,417.37 : x
  2. Step 2: Convert to fraction form
    255,809.24/383,980 = 188,417.37/x
  3. Step 3: Cross multiply
    255,809.24x = 383,980 × 188,417.37
  4. Step 4: Simplify right side
    255,809.24x = 72,348,501,732.60
  5. Step 5: Solve for x
    x = 72,348,501,732.60/255,809.24
  6. Step 6: Final answer
    x = 282,822.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.