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Finding the Fourth Proportional to 306,599.31, 423,008.60 and 185,701.95

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Solution

The fourth proportional to 306,599.31, 423,008.60 and 185,701.95 is: 256,209.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,599.31 : 423,008.60 = 185,701.95 : x
  2. Step 2: Convert to fraction form
    306,599.31/423,008.60 = 185,701.95/x
  3. Step 3: Cross multiply
    306,599.31x = 423,008.60 × 185,701.95
  4. Step 4: Simplify right side
    306,599.31x = 78,553,520,958.26
  5. Step 5: Solve for x
    x = 78,553,520,958.26/306,599.31
  6. Step 6: Final answer
    x = 256,209.06

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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.