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Finding the Fourth Proportional to 405,167.04, 559,128.32 and 223,878.72

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Solution

The fourth proportional to 405,167.04, 559,128.32 and 223,878.72 is: 308,951.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,167.04 : 559,128.32 = 223,878.72 : x
  2. Step 2: Convert to fraction form
    405,167.04/559,128.32 = 223,878.72/x
  3. Step 3: Cross multiply
    405,167.04x = 559,128.32 × 223,878.72
  4. Step 4: Simplify right side
    405,167.04x = 125,176,932,597.35
  5. Step 5: Solve for x
    x = 125,176,932,597.35/405,167.04
  6. Step 6: Final answer
    x = 308,951.42

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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.