Home / 243,397.80-365,234.13-131,075.64

Finding the Fourth Proportional to 243,397.80, 365,234.13 and 131,075.64

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Solution

The fourth proportional to 243,397.80, 365,234.13 and 131,075.64 is: 196,687.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,397.80 : 365,234.13 = 131,075.64 : x
  2. Step 2: Convert to fraction form
    243,397.80/365,234.13 = 131,075.64/x
  3. Step 3: Cross multiply
    243,397.80x = 365,234.13 × 131,075.64
  4. Step 4: Simplify right side
    243,397.80x = 47,873,297,339.59
  5. Step 5: Solve for x
    x = 47,873,297,339.59/243,397.80
  6. Step 6: Final answer
    x = 196,687.47

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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.