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Finding the Fourth Proportional to 223,997.58, 309,116.70 and 123,395.58

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Solution

The fourth proportional to 223,997.58, 309,116.70 and 123,395.58 is: 170,285.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,997.58 : 309,116.70 = 123,395.58 : x
  2. Step 2: Convert to fraction form
    223,997.58/309,116.70 = 123,395.58/x
  3. Step 3: Cross multiply
    223,997.58x = 309,116.70 × 123,395.58
  4. Step 4: Simplify right side
    223,997.58x = 38,143,634,484.19
  5. Step 5: Solve for x
    x = 38,143,634,484.19/223,997.58
  6. Step 6: Final answer
    x = 170,285.92

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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.