Home / 305,407.10-458,289.30-127,899.20

Finding the Fourth Proportional to 305,407.10, 458,289.30 and 127,899.20

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Solution

The fourth proportional to 305,407.10, 458,289.30 and 127,899.20 is: 191,923.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,407.10 : 458,289.30 = 127,899.20 : x
  2. Step 2: Convert to fraction form
    305,407.10/458,289.30 = 127,899.20/x
  3. Step 3: Cross multiply
    305,407.10x = 458,289.30 × 127,899.20
  4. Step 4: Simplify right side
    305,407.10x = 58,614,834,838.56
  5. Step 5: Solve for x
    x = 58,614,834,838.56/305,407.10
  6. Step 6: Final answer
    x = 191,923.62

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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.