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Finding the Fourth Proportional to 243,234.80, 339,741.40 and 243,234.80

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Solution

The fourth proportional to 243,234.80, 339,741.40 and 243,234.80 is: 339,741.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,234.80 : 339,741.40 = 243,234.80 : x
  2. Step 2: Convert to fraction form
    243,234.80/339,741.40 = 243,234.80/x
  3. Step 3: Cross multiply
    243,234.80x = 339,741.40 × 243,234.80
  4. Step 4: Simplify right side
    243,234.80x = 82,636,931,480.72
  5. Step 5: Solve for x
    x = 82,636,931,480.72/243,234.80
  6. Step 6: Final answer
    x = 339,741.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.