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Finding the Fourth Proportional to 342,214.80, 513,322.20 and 92,896.80

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Solution

The fourth proportional to 342,214.80, 513,322.20 and 92,896.80 is: 139,345.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,214.80 : 513,322.20 = 92,896.80 : x
  2. Step 2: Convert to fraction form
    342,214.80/513,322.20 = 92,896.80/x
  3. Step 3: Cross multiply
    342,214.80x = 513,322.20 × 92,896.80
  4. Step 4: Simplify right side
    342,214.80x = 47,685,989,748.96
  5. Step 5: Solve for x
    x = 47,685,989,748.96/342,214.80
  6. Step 6: Final answer
    x = 139,345.20

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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.