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Finding the Fourth Proportional to 664,952.16, 997,216.80 and 215,567.52

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Solution

The fourth proportional to 664,952.16, 997,216.80 and 215,567.52 is: 323,282.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,952.16 : 997,216.80 = 215,567.52 : x
  2. Step 2: Convert to fraction form
    664,952.16/997,216.80 = 215,567.52/x
  3. Step 3: Cross multiply
    664,952.16x = 997,216.80 × 215,567.52
  4. Step 4: Simplify right side
    664,952.16x = 214,967,552,478.34
  5. Step 5: Solve for x
    x = 214,967,552,478.34/664,952.16
  6. Step 6: Final answer
    x = 323,282.73

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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.