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Finding the Fourth Proportional to 260,373.78, 359,298.86 and 145,632.56

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Solution

The fourth proportional to 260,373.78, 359,298.86 and 145,632.56 is: 200,963.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,373.78 : 359,298.86 = 145,632.56 : x
  2. Step 2: Convert to fraction form
    260,373.78/359,298.86 = 145,632.56/x
  3. Step 3: Cross multiply
    260,373.78x = 359,298.86 × 145,632.56
  4. Step 4: Simplify right side
    260,373.78x = 52,325,610,262.22
  5. Step 5: Solve for x
    x = 52,325,610,262.22/260,373.78
  6. Step 6: Final answer
    x = 200,963.44

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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.