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Finding the Fourth Proportional to 259,657.88, 358,328.95 and 140,425.88

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Solution

The fourth proportional to 259,657.88, 358,328.95 and 140,425.88 is: 193,788.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,657.88 : 358,328.95 = 140,425.88 : x
  2. Step 2: Convert to fraction form
    259,657.88/358,328.95 = 140,425.88/x
  3. Step 3: Cross multiply
    259,657.88x = 358,328.95 × 140,425.88
  4. Step 4: Simplify right side
    259,657.88x = 50,318,655,990.52
  5. Step 5: Solve for x
    x = 50,318,655,990.52/259,657.88
  6. Step 6: Final answer
    x = 193,788.29

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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.