Home / 305,138.28-457,644.80-115,533.39

Finding the Fourth Proportional to 305,138.28, 457,644.80 and 115,533.39

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Solution

The fourth proportional to 305,138.28, 457,644.80 and 115,533.39 is: 173,276.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,138.28 : 457,644.80 = 115,533.39 : x
  2. Step 2: Convert to fraction form
    305,138.28/457,644.80 = 115,533.39/x
  3. Step 3: Cross multiply
    305,138.28x = 457,644.80 × 115,533.39
  4. Step 4: Simplify right side
    305,138.28x = 52,873,254,582.21
  5. Step 5: Solve for x
    x = 52,873,254,582.21/305,138.28
  6. Step 6: Final answer
    x = 173,276.37

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1.5x scale

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.