Home / 405,449.16-559,531.50-224,172.78

Finding the Fourth Proportional to 405,449.16, 559,531.50 and 224,172.78

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Solution

The fourth proportional to 405,449.16, 559,531.50 and 224,172.78 is: 309,364.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,449.16 : 559,531.50 = 224,172.78 : x
  2. Step 2: Convert to fraction form
    405,449.16/559,531.50 = 224,172.78/x
  3. Step 3: Cross multiply
    405,449.16x = 559,531.50 × 224,172.78
  4. Step 4: Simplify right side
    405,449.16x = 125,431,731,852.57
  5. Step 5: Solve for x
    x = 125,431,731,852.57/405,449.16
  6. Step 6: Final answer
    x = 309,364.88

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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.