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Finding the Fourth Proportional to 343,800.40, 515,700.60 and 324,117.40

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Solution

The fourth proportional to 343,800.40, 515,700.60 and 324,117.40 is: 486,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,800.40 : 515,700.60 = 324,117.40 : x
  2. Step 2: Convert to fraction form
    343,800.40/515,700.60 = 324,117.40/x
  3. Step 3: Cross multiply
    343,800.40x = 515,700.60 × 324,117.40
  4. Step 4: Simplify right side
    343,800.40x = 167,147,537,650.44
  5. Step 5: Solve for x
    x = 167,147,537,650.44/343,800.40
  6. Step 6: Final answer
    x = 486,176.10

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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.