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Finding the Fourth Proportional to 320,840.98, 442,800.13 and 183,053.83

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Solution

The fourth proportional to 320,840.98, 442,800.13 and 183,053.83 is: 252,636.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,840.98 : 442,800.13 = 183,053.83 : x
  2. Step 2: Convert to fraction form
    320,840.98/442,800.13 = 183,053.83/x
  3. Step 3: Cross multiply
    320,840.98x = 442,800.13 × 183,053.83
  4. Step 4: Simplify right side
    320,840.98x = 81,056,259,816.86
  5. Step 5: Solve for x
    x = 81,056,259,816.86/320,840.98
  6. Step 6: Final answer
    x = 252,636.87

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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.