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Finding the Fourth Proportional to 342,263.72, 513,356.32 and 89,568.68

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Solution

The fourth proportional to 342,263.72, 513,356.32 and 89,568.68 is: 134,342.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,263.72 : 513,356.32 = 89,568.68 : x
  2. Step 2: Convert to fraction form
    342,263.72/513,356.32 = 89,568.68/x
  3. Step 3: Cross multiply
    342,263.72x = 513,356.32 × 89,568.68
  4. Step 4: Simplify right side
    342,263.72x = 45,980,647,952.06
  5. Step 5: Solve for x
    x = 45,980,647,952.06/342,263.72
  6. Step 6: Final answer
    x = 134,342.75

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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.