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Finding the Fourth Proportional to 320,172.99, 480,584.45 and 160,363.42

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Solution

The fourth proportional to 320,172.99, 480,584.45 and 160,363.42 is: 240,707.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,172.99 : 480,584.45 = 160,363.42 : x
  2. Step 2: Convert to fraction form
    320,172.99/480,584.45 = 160,363.42/x
  3. Step 3: Cross multiply
    320,172.99x = 480,584.45 × 160,363.42
  4. Step 4: Simplify right side
    320,172.99x = 77,068,166,000.82
  5. Step 5: Solve for x
    x = 77,068,166,000.82/320,172.99
  6. Step 6: Final answer
    x = 240,707.89

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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.