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Finding the Fourth Proportional to 260,494.56, 359,403.12 and 145,761.30

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Solution

The fourth proportional to 260,494.56, 359,403.12 and 145,761.30 is: 201,106.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,494.56 : 359,403.12 = 145,761.30 : x
  2. Step 2: Convert to fraction form
    260,494.56/359,403.12 = 145,761.30/x
  3. Step 3: Cross multiply
    260,494.56x = 359,403.12 × 145,761.30
  4. Step 4: Simplify right side
    260,494.56x = 52,387,065,995.26
  5. Step 5: Solve for x
    x = 52,387,065,995.26/260,494.56
  6. Step 6: Final answer
    x = 201,106.18

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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.