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Finding the Fourth Proportional to 488,270.50, 732,400.27 and 172,653.59

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Solution

The fourth proportional to 488,270.50, 732,400.27 and 172,653.59 is: 258,978.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,270.50 : 732,400.27 = 172,653.59 : x
  2. Step 2: Convert to fraction form
    488,270.50/732,400.27 = 172,653.59/x
  3. Step 3: Cross multiply
    488,270.50x = 732,400.27 × 172,653.59
  4. Step 4: Simplify right side
    488,270.50x = 126,451,538,303.01
  5. Step 5: Solve for x
    x = 126,451,538,303.01/488,270.50
  6. Step 6: Final answer
    x = 258,978.45

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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.