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Finding the Fourth Proportional to 306,513.88, 422,925.76 and 179,164.86

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Solution

The fourth proportional to 306,513.88, 422,925.76 and 179,164.86 is: 247,210.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,513.88 : 422,925.76 = 179,164.86 : x
  2. Step 2: Convert to fraction form
    306,513.88/422,925.76 = 179,164.86/x
  3. Step 3: Cross multiply
    306,513.88x = 422,925.76 × 179,164.86
  4. Step 4: Simplify right side
    306,513.88x = 75,773,434,580.79
  5. Step 5: Solve for x
    x = 75,773,434,580.79/306,513.88
  6. Step 6: Final answer
    x = 247,210.45

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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.