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Finding the Fourth Proportional to 320,412.17, 480,666.04 and 117,992.71

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Solution

The fourth proportional to 320,412.17, 480,666.04 and 117,992.71 is: 177,006.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,412.17 : 480,666.04 = 117,992.71 : x
  2. Step 2: Convert to fraction form
    320,412.17/480,666.04 = 117,992.71/x
  3. Step 3: Cross multiply
    320,412.17x = 480,666.04 × 117,992.71
  4. Step 4: Simplify right side
    320,412.17x = 56,715,085,671.27
  5. Step 5: Solve for x
    x = 56,715,085,671.27/320,412.17
  6. Step 6: Final answer
    x = 177,006.65

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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.