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Finding the Fourth Proportional to 305,509.96, 458,259.90 and 125,558.92

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Solution

The fourth proportional to 305,509.96, 458,259.90 and 125,558.92 is: 188,336.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,509.96 : 458,259.90 = 125,558.92 : x
  2. Step 2: Convert to fraction form
    305,509.96/458,259.90 = 125,558.92/x
  3. Step 3: Cross multiply
    305,509.96x = 458,259.90 × 125,558.92
  4. Step 4: Simplify right side
    305,509.96x = 57,538,618,123.31
  5. Step 5: Solve for x
    x = 57,538,618,123.31/305,509.96
  6. Step 6: Final answer
    x = 188,336.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.