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Finding the Fourth Proportional to 260,682.59, 359,712.23 and 145,945.28

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Solution

The fourth proportional to 260,682.59, 359,712.23 and 145,945.28 is: 201,387.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,682.59 : 359,712.23 = 145,945.28 : x
  2. Step 2: Convert to fraction form
    260,682.59/359,712.23 = 145,945.28/x
  3. Step 3: Cross multiply
    260,682.59x = 359,712.23 × 145,945.28
  4. Step 4: Simplify right side
    260,682.59x = 52,498,299,598.49
  5. Step 5: Solve for x
    x = 52,498,299,598.49/260,682.59
  6. Step 6: Final answer
    x = 201,387.83

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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.