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Finding the Fourth Proportional to 405,615, 559,726.60 and 224,316.36

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Solution

The fourth proportional to 405,615, 559,726.60 and 224,316.36 is: 309,544.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,615 : 559,726.60 = 224,316.36 : x
  2. Step 2: Convert to fraction form
    405,615/559,726.60 = 224,316.36/x
  3. Step 3: Cross multiply
    405,615x = 559,726.60 × 224,316.36
  4. Step 4: Simplify right side
    405,615x = 125,555,833,507.18
  5. Step 5: Solve for x
    x = 125,555,833,507.18/405,615
  6. Step 6: Final answer
    x = 309,544.35

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1.5x scale

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.