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Finding the Fourth Proportional to 310,832.66, 428,949.72 and 183,516.45

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Solution

The fourth proportional to 310,832.66, 428,949.72 and 183,516.45 is: 253,253.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,832.66 : 428,949.72 = 183,516.45 : x
  2. Step 2: Convert to fraction form
    310,832.66/428,949.72 = 183,516.45/x
  3. Step 3: Cross multiply
    310,832.66x = 428,949.72 × 183,516.45
  4. Step 4: Simplify right side
    310,832.66x = 78,719,329,842.89
  5. Step 5: Solve for x
    x = 78,719,329,842.89/310,832.66
  6. Step 6: Final answer
    x = 253,253.09

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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.