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Finding the Fourth Proportional to 243,017.70, 364,526.55 and 131,043.30

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Solution

The fourth proportional to 243,017.70, 364,526.55 and 131,043.30 is: 196,564.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,017.70 : 364,526.55 = 131,043.30 : x
  2. Step 2: Convert to fraction form
    243,017.70/364,526.55 = 131,043.30/x
  3. Step 3: Cross multiply
    243,017.70x = 364,526.55 × 131,043.30
  4. Step 4: Simplify right side
    243,017.70x = 47,768,762,049.62
  5. Step 5: Solve for x
    x = 47,768,762,049.62/243,017.70
  6. Step 6: Final answer
    x = 196,564.95

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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.