Home / 305,130.25-457,695.38-118,141.75

Finding the Fourth Proportional to 305,130.25, 457,695.38 and 118,141.75

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Solution

The fourth proportional to 305,130.25, 457,695.38 and 118,141.75 is: 177,212.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,130.25 : 457,695.38 = 118,141.75 : x
  2. Step 2: Convert to fraction form
    305,130.25/457,695.38 = 118,141.75/x
  3. Step 3: Cross multiply
    305,130.25x = 457,695.38 × 118,141.75
  4. Step 4: Simplify right side
    305,130.25x = 54,072,933,160.12
  5. Step 5: Solve for x
    x = 54,072,933,160.12/305,130.25
  6. Step 6: Final answer
    x = 177,212.63

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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.