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Finding the Fourth Proportional to 282,315.57, 423,408.75 and 168,495.51

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Solution

The fourth proportional to 282,315.57, 423,408.75 and 168,495.51 is: 252,704.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,315.57 : 423,408.75 = 168,495.51 : x
  2. Step 2: Convert to fraction form
    282,315.57/423,408.75 = 168,495.51/x
  3. Step 3: Cross multiply
    282,315.57x = 423,408.75 × 168,495.51
  4. Step 4: Simplify right side
    282,315.57x = 71,342,474,225.64
  5. Step 5: Solve for x
    x = 71,342,474,225.64/282,315.57
  6. Step 6: Final answer
    x = 252,704.71

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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.