Home / 305,339.60-457,921.72-102,913.52

Finding the Fourth Proportional to 305,339.60, 457,921.72 and 102,913.52

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Solution

The fourth proportional to 305,339.60, 457,921.72 and 102,913.52 is: 154,340.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,339.60 : 457,921.72 = 102,913.52 : x
  2. Step 2: Convert to fraction form
    305,339.60/457,921.72 = 102,913.52/x
  3. Step 3: Cross multiply
    305,339.60x = 457,921.72 × 102,913.52
  4. Step 4: Simplify right side
    305,339.60x = 47,126,336,089.65
  5. Step 5: Solve for x
    x = 47,126,336,089.65/305,339.60
  6. Step 6: Final answer
    x = 154,340.73

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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.