Home / 305,139.35-457,646.46-115,534.31

Finding the Fourth Proportional to 305,139.35, 457,646.46 and 115,534.31

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Solution

The fourth proportional to 305,139.35, 457,646.46 and 115,534.31 is: 173,277.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,139.35 : 457,646.46 = 115,534.31 : x
  2. Step 2: Convert to fraction form
    305,139.35/457,646.46 = 115,534.31/x
  3. Step 3: Cross multiply
    305,139.35x = 457,646.46 × 115,534.31
  4. Step 4: Simplify right side
    305,139.35x = 52,873,865,691.81
  5. Step 5: Solve for x
    x = 52,873,865,691.81/305,139.35
  6. Step 6: Final answer
    x = 173,277.77

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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.