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Finding the Fourth Proportional to 316,810.69, 475,216.64 and 76,923.58

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Solution

The fourth proportional to 316,810.69, 475,216.64 and 76,923.58 is: 115,385.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,810.69 : 475,216.64 = 76,923.58 : x
  2. Step 2: Convert to fraction form
    316,810.69/475,216.64 = 76,923.58/x
  3. Step 3: Cross multiply
    316,810.69x = 475,216.64 × 76,923.58
  4. Step 4: Simplify right side
    316,810.69x = 36,555,364,228.64
  5. Step 5: Solve for x
    x = 36,555,364,228.64/316,810.69
  6. Step 6: Final answer
    x = 115,385.51

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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.