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Finding the Fourth Proportional to 243,401.30, 365,239.41 and 131,079.14

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Solution

The fourth proportional to 243,401.30, 365,239.41 and 131,079.14 is: 196,692.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,401.30 : 365,239.41 = 131,079.14 : x
  2. Step 2: Convert to fraction form
    243,401.30/365,239.41 = 131,079.14/x
  3. Step 3: Cross multiply
    243,401.30x = 365,239.41 × 131,079.14
  4. Step 4: Simplify right side
    243,401.30x = 47,875,267,756.91
  5. Step 5: Solve for x
    x = 47,875,267,756.91/243,401.30
  6. Step 6: Final answer
    x = 196,692.74

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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.