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Finding the Fourth Proportional to 222,308.77, 306,824.88 and 131,715.74

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Solution

The fourth proportional to 222,308.77, 306,824.88 and 131,715.74 is: 181,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,308.77 : 306,824.88 = 131,715.74 : x
  2. Step 2: Convert to fraction form
    222,308.77/306,824.88 = 131,715.74/x
  3. Step 3: Cross multiply
    222,308.77x = 306,824.88 × 131,715.74
  4. Step 4: Simplify right side
    222,308.77x = 40,413,666,119.61
  5. Step 5: Solve for x
    x = 40,413,666,119.61/222,308.77
  6. Step 6: Final answer
    x = 181,790.70

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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.