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Finding the Fourth Proportional to 312,366.39, 468,549.57 and 75,709.06

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Solution

The fourth proportional to 312,366.39, 468,549.57 and 75,709.06 is: 113,563.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,366.39 : 468,549.57 = 75,709.06 : x
  2. Step 2: Convert to fraction form
    312,366.39/468,549.57 = 75,709.06/x
  3. Step 3: Cross multiply
    312,366.39x = 468,549.57 × 75,709.06
  4. Step 4: Simplify right side
    312,366.39x = 35,473,445,165.36
  5. Step 5: Solve for x
    x = 35,473,445,165.36/312,366.39
  6. Step 6: Final answer
    x = 113,563.58

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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.