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Finding the Fourth Proportional to 260,239.73, 359,131.47 and 145,522.53

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Solution

The fourth proportional to 260,239.73, 359,131.47 and 145,522.53 is: 200,821.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,239.73 : 359,131.47 = 145,522.53 : x
  2. Step 2: Convert to fraction form
    260,239.73/359,131.47 = 145,522.53/x
  3. Step 3: Cross multiply
    260,239.73x = 359,131.47 × 145,522.53
  4. Step 4: Simplify right side
    260,239.73x = 52,261,720,117.02
  5. Step 5: Solve for x
    x = 52,261,720,117.02/260,239.73
  6. Step 6: Final answer
    x = 200,821.45

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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.