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Finding the Fourth Proportional to 306,855, 423,459.96 and 179,555.04

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Solution

The fourth proportional to 306,855, 423,459.96 and 179,555.04 is: 247,785.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,855 : 423,459.96 = 179,555.04 : x
  2. Step 2: Convert to fraction form
    306,855/423,459.96 = 179,555.04/x
  3. Step 3: Cross multiply
    306,855x = 423,459.96 × 179,555.04
  4. Step 4: Simplify right side
    306,855x = 76,034,370,056.20
  5. Step 5: Solve for x
    x = 76,034,370,056.20/306,855
  6. Step 6: Final answer
    x = 247,785.99

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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.