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Finding the Fourth Proportional to 342,284.80, 512,989.80 and 164,408.80

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Solution

The fourth proportional to 342,284.80, 512,989.80 and 164,408.80 is: 246,403.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,284.80 : 512,989.80 = 164,408.80 : x
  2. Step 2: Convert to fraction form
    342,284.80/512,989.80 = 164,408.80/x
  3. Step 3: Cross multiply
    342,284.80x = 512,989.80 × 164,408.80
  4. Step 4: Simplify right side
    342,284.80x = 84,340,037,430.24
  5. Step 5: Solve for x
    x = 84,340,037,430.24/342,284.80
  6. Step 6: Final answer
    x = 246,403.10

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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.