Home / 305,118.20-457,677.32-118,129.70

Finding the Fourth Proportional to 305,118.20, 457,677.32 and 118,129.70

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Solution

The fourth proportional to 305,118.20, 457,677.32 and 118,129.70 is: 177,194.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,118.20 : 457,677.32 = 118,129.70 : x
  2. Step 2: Convert to fraction form
    305,118.20/457,677.32 = 118,129.70/x
  3. Step 3: Cross multiply
    305,118.20x = 457,677.32 × 118,129.70
  4. Step 4: Simplify right side
    305,118.20x = 54,065,281,629.37
  5. Step 5: Solve for x
    x = 54,065,281,629.37/305,118.20
  6. Step 6: Final answer
    x = 177,194.55

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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.