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Finding the Fourth Proportional to 260,189.47, 359,079.60 and 145,490.44

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Solution

The fourth proportional to 260,189.47, 359,079.60 and 145,490.44 is: 200,786.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,189.47 : 359,079.60 = 145,490.44 : x
  2. Step 2: Convert to fraction form
    260,189.47/359,079.60 = 145,490.44/x
  3. Step 3: Cross multiply
    260,189.47x = 359,079.60 × 145,490.44
  4. Step 4: Simplify right side
    260,189.47x = 52,242,648,999.02
  5. Step 5: Solve for x
    x = 52,242,648,999.02/260,189.47
  6. Step 6: Final answer
    x = 200,786.95

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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.