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Finding the Fourth Proportional to 499,151.52, 748,804.72 and 210,964.38

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Solution

The fourth proportional to 499,151.52, 748,804.72 and 210,964.38 is: 316,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,151.52 : 748,804.72 = 210,964.38 : x
  2. Step 2: Convert to fraction form
    499,151.52/748,804.72 = 210,964.38/x
  3. Step 3: Cross multiply
    499,151.52x = 748,804.72 × 210,964.38
  4. Step 4: Simplify right side
    499,151.52x = 157,971,123,495.87
  5. Step 5: Solve for x
    x = 157,971,123,495.87/499,151.52
  6. Step 6: Final answer
    x = 316,479.30

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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.