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Finding the Fourth Proportional to 493,259.88, 739,895.52 and 173,421.12

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Solution

The fourth proportional to 493,259.88, 739,895.52 and 173,421.12 is: 260,133.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,259.88 : 739,895.52 = 173,421.12 : x
  2. Step 2: Convert to fraction form
    493,259.88/739,895.52 = 173,421.12/x
  3. Step 3: Cross multiply
    493,259.88x = 739,895.52 × 173,421.12
  4. Step 4: Simplify right side
    493,259.88x = 128,313,509,761.38
  5. Step 5: Solve for x
    x = 128,313,509,761.38/493,259.88
  6. Step 6: Final answer
    x = 260,133.68

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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.