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Finding the Fourth Proportional to 405,152.46, 559,081.62 and 223,862.45

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Solution

The fourth proportional to 405,152.46, 559,081.62 and 223,862.45 is: 308,914.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,152.46 : 559,081.62 = 223,862.45 : x
  2. Step 2: Convert to fraction form
    405,152.46/559,081.62 = 223,862.45/x
  3. Step 3: Cross multiply
    405,152.46x = 559,081.62 × 223,862.45
  4. Step 4: Simplify right side
    405,152.46x = 125,157,378,407.76
  5. Step 5: Solve for x
    x = 125,157,378,407.76/405,152.46
  6. Step 6: Final answer
    x = 308,914.27

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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.