Home / 305,120.22-457,673.85-105,434.46

Finding the Fourth Proportional to 305,120.22, 457,673.85 and 105,434.46

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Solution

The fourth proportional to 305,120.22, 457,673.85 and 105,434.46 is: 158,149.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,120.22 : 457,673.85 = 105,434.46 : x
  2. Step 2: Convert to fraction form
    305,120.22/457,673.85 = 105,434.46/x
  3. Step 3: Cross multiply
    305,120.22x = 457,673.85 × 105,434.46
  4. Step 4: Simplify right side
    305,120.22x = 48,254,595,230.87
  5. Step 5: Solve for x
    x = 48,254,595,230.87/305,120.22
  6. Step 6: Final answer
    x = 158,149.45

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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.