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Finding the Fourth Proportional to 312,150.40, 468,052.80 and 124,950.40

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Solution

The fourth proportional to 312,150.40, 468,052.80 and 124,950.40 is: 187,356.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,150.40 : 468,052.80 = 124,950.40 : x
  2. Step 2: Convert to fraction form
    312,150.40/468,052.80 = 124,950.40/x
  3. Step 3: Cross multiply
    312,150.40x = 468,052.80 × 124,950.40
  4. Step 4: Simplify right side
    312,150.40x = 58,483,384,581.12
  5. Step 5: Solve for x
    x = 58,483,384,581.12/312,150.40
  6. Step 6: Final answer
    x = 187,356.43

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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.