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Finding the Fourth Proportional to 312,431.76, 468,550.71 and 112,726.26

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Solution

The fourth proportional to 312,431.76, 468,550.71 and 112,726.26 is: 169,054.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,431.76 : 468,550.71 = 112,726.26 : x
  2. Step 2: Convert to fraction form
    312,431.76/468,550.71 = 112,726.26/x
  3. Step 3: Cross multiply
    312,431.76x = 468,550.71 × 112,726.26
  4. Step 4: Simplify right side
    312,431.76x = 52,817,969,158.64
  5. Step 5: Solve for x
    x = 52,817,969,158.64/312,431.76
  6. Step 6: Final answer
    x = 169,054.42

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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.