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Finding the Fourth Proportional to 461,462.86, 636,817.55 and 257,511.62

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Solution

The fourth proportional to 461,462.86, 636,817.55 and 257,511.62 is: 355,365.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,462.86 : 636,817.55 = 257,511.62 : x
  2. Step 2: Convert to fraction form
    461,462.86/636,817.55 = 257,511.62/x
  3. Step 3: Cross multiply
    461,462.86x = 636,817.55 × 257,511.62
  4. Step 4: Simplify right side
    461,462.86x = 163,987,918,944.93
  5. Step 5: Solve for x
    x = 163,987,918,944.93/461,462.86
  6. Step 6: Final answer
    x = 355,365.37

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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.