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Finding the Fourth Proportional to 322,482.56, 445,146.69 and 242,142.20

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Solution

The fourth proportional to 322,482.56, 445,146.69 and 242,142.20 is: 334,246.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,482.56 : 445,146.69 = 242,142.20 : x
  2. Step 2: Convert to fraction form
    322,482.56/445,146.69 = 242,142.20/x
  3. Step 3: Cross multiply
    322,482.56x = 445,146.69 × 242,142.20
  4. Step 4: Simplify right side
    322,482.56x = 107,788,796,613.59
  5. Step 5: Solve for x
    x = 107,788,796,613.59/322,482.56
  6. Step 6: Final answer
    x = 334,246.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.