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Finding the Fourth Proportional to 243,045.45, 364,076.10 and 137,741.40

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Solution

The fourth proportional to 243,045.45, 364,076.10 and 137,741.40 is: 206,333.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,045.45 : 364,076.10 = 137,741.40 : x
  2. Step 2: Convert to fraction form
    243,045.45/364,076.10 = 137,741.40/x
  3. Step 3: Cross multiply
    243,045.45x = 364,076.10 × 137,741.40
  4. Step 4: Simplify right side
    243,045.45x = 50,148,351,720.54
  5. Step 5: Solve for x
    x = 50,148,351,720.54/243,045.45
  6. Step 6: Final answer
    x = 206,333.23

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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.