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Finding the Fourth Proportional to 251,458, 377,209.68 and 64,471.12

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Solution

The fourth proportional to 251,458, 377,209.68 and 64,471.12 is: 96,712.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,458 : 377,209.68 = 64,471.12 : x
  2. Step 2: Convert to fraction form
    251,458/377,209.68 = 64,471.12/x
  3. Step 3: Cross multiply
    251,458x = 377,209.68 × 64,471.12
  4. Step 4: Simplify right side
    251,458x = 24,319,130,544.44
  5. Step 5: Solve for x
    x = 24,319,130,544.44/251,458
  6. Step 6: Final answer
    x = 96,712.49

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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.