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Finding the Fourth Proportional to 320,225.96, 480,639.90 and 162,567.56

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Solution

The fourth proportional to 320,225.96, 480,639.90 and 162,567.56 is: 244,004.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,225.96 : 480,639.90 = 162,567.56 : x
  2. Step 2: Convert to fraction form
    320,225.96/480,639.90 = 162,567.56/x
  3. Step 3: Cross multiply
    320,225.96x = 480,639.90 × 162,567.56
  4. Step 4: Simplify right side
    320,225.96x = 78,136,455,781.64
  5. Step 5: Solve for x
    x = 78,136,455,781.64/320,225.96
  6. Step 6: Final answer
    x = 244,004.13

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1.5x scale

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.