Home / 226,430.54-312,467.58-129,631.16

Finding the Fourth Proportional to 226,430.54, 312,467.58 and 129,631.16

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Solution

The fourth proportional to 226,430.54, 312,467.58 and 129,631.16 is: 178,887.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,430.54 : 312,467.58 = 129,631.16 : x
  2. Step 2: Convert to fraction form
    226,430.54/312,467.58 = 129,631.16/x
  3. Step 3: Cross multiply
    226,430.54x = 312,467.58 × 129,631.16
  4. Step 4: Simplify right side
    226,430.54x = 40,505,534,857.79
  5. Step 5: Solve for x
    x = 40,505,534,857.79/226,430.54
  6. Step 6: Final answer
    x = 178,887.24

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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.